Update asciimatics to 1.15.0

[pyup-bot]

This PR updates asciimatics from 1.9.0 to 1.15.0.

Changelog

1.15.0

------
- Dropped support for Python 2, Python 3.9 or above is now required.
- Added support for ColouredText titles in MultiColumnLIstBox.
- Added gutter option to Layout.
- Added speed option to Sprite.
- Fixed bug where moving focus between Frames resulted in no current focus.
- Fixed internal state of RadioButton values to be consistent with selection.
- Fixed handling of zero width modifiers.
- Fixed image conversion to use modern PIL API and sort off-by-one height error.
- Fixed parser bug returning list instead of colour tuple.

1.14.0

------
- Added AnsiArtPlayer and AsciinemaPlayer
- Added dynamically sized, animated sprites to ray caster demo.
- Added fit parameter to DropdownList.
- Added support for default colours to AnsiTerminalParser
- Added VBarChart renderer.
- BREAKING VISUAL CHANGE: Frame now supports scroll bars without borders, to have no border and no scroll bar you now need Frame(has_border=False, can_scroll=False)
- Added TextBox.hide_cursor and TextBox.auto_scroll properties
- Added optional diameter parameter to ShootScreen.
- Improved DropEmitter effect - will now typically take a little longer to clear the screen.
- Fixed bug in widget focus - eliminated duplicate events and some cases that failed to move focus
- Fixed bug in clear_widgets() - also reset any focus in the layout.
- Fixed bug: layout could still be a tab stop with no active widgets.

1.13.0

------
- Added ability to change a `Button`'s text through a `.text` attribute.
- Added ability to accept a name attribute in the `Button` and `Label` constructors.
- Added ability to detect job pause/resume and force full screen refresh.
- Added ability to request terminal default colours using `Screen.COLOUR_DEFAULT`.
- Converted widgets to a sub-package.
- Fixed issue with labels in a layout column preventing buttons from being pressed.
- Fixed issue with visual overrun on Listboxes when there is a label offset.
- Fixed issue with TextBox hitting IndexError in double buffers due to lack of clipping.
- Fixed issue with Text/TextBox start columns on reset.
- Added troubleshooting on terminal colour handling.

1.12.0

------
- Added ColouredText objects to handle embedded colour codes in text for some widgets.
- Added parsers to handle Asciimatics and Ansi Terminal escape sequences.
- Added ControlCodeParser to create human readable text from raw text with control codes in it.
- Added readonly logic for Text and TextBox.
- Added ability to enable/disable widgets by column in layouts.
- Added left/right/up/down navigation to nearest widget.
- Added ability to scroll screen/canvas by variable number of lines.
- Created terminal demo
- Fixed exception on reinstating NoneType signal handler.
- Fixed float/int issue with recent builds of pywin32.
- Fixed issue where setting options changed the selected value (even if it was still present).
- Fixed erroneous trigger of on_load for all Frames at start of day.
- Fixed bug where Frames passed on events that they already handled.
- Fixed bug: Restore current theme on screen resize.
- Fixed bug in scrolling the screen up.

1.11.0

------
- Added `allow_int` parameter to `Screen.play()`.
- Added `max_length` parameter to `Text`.
- Added support for page up/down in `TextBox`.
- Added optional scroll bars to `MultiColumnListBox`.
- Added `file_filter` parameter to `FileBrowser`.
- Added `wait_for_input` method to `Screen`.
- Added optional `theme` parameter to `PopupDialog`.
- Added optional `jitter` parameter to `Noise`.
- Added `ManagedScreen` decorator.
- Improved performance of double-buffering.

- NOTE: Drawing off-screen with a large scrolling buffer is no longer supported (as it wasn't
 needed).

- Added optional `pattern` parameter to `Stars`.
- Improved handling of permission errors in `FileBrowser`.
- Added formal support for defining your own colour theme.
- Added `clear_widgets` to `Layout` objects.
- Fixed height of PopUpDialog when no buttons are specified.
- Fixed bug where asciimatics Scenes would hang when the clock is moved back in time.
- Fixed off-by-one error in BarChart labels.
- Fixed bug where Labels ignored the custom_colour property.
- Added default date and time to DatePicker and TimePicker when no value specified.

1.10.0

------
- Added 'Frame.focussed_widget' to access current focussed widget of the frame.
- Added `PopupMenu` for dynamic contextual menus.
- Added `DropdownList` widget.
- Added `VerticalDivider` widget.
- Added optional scroll bar to Listboxes.
- Added `line_wrap` option to TextBoxes.
- Added `line_char` option to Dividers.
- Added `align` option to Labels.
- Added `width` property to widgets.
- Added `set_theme` to Frames and provided some new colour schemes.
- Fixed `Screen.wrapper()` to return result from wrapped function.
- Fixed list box truncation when lines are too long.
- Fixed issue with background colour when scrolling GNOME terminal.
- Fixed Text validator to support instance methods.
- Fixed exception raised by getdefaultlocale on some curses systems.
- Performance tweaks for non-unicode widgets.
- Relaxed restriction on static function callbacks for pop-up dialogs.
- Fixed bug where `Listbox.reset()` overrode current selected value.
- Fixed handling of decomposed unicode file names in `FileBrowser` for MacOS
- Fixed CJK issues with `Screen.paint()` and `SpeechBubble`.
- Fixed issue with dynamically added Frames so that they are reset before displayed for the first
time.

Links

• PyPI: https://pypi.org/project/asciimatics
• Changelog: https://data.safetycli.com/changelogs/asciimatics/
• Repo: https://github.com/peterbrittain/asciimatics