v0.5.6: compatibility update

- At build time generate color tables with CMake ft. @liushuyu
- Compatibility nits for fmtlib 9+
- Drop ImageMagick support
- Add blackbox python test script to CMake CTest ft. @liushuyu

v0.5.5

- Allow pamenim to take "-" as output file and write directly to stdout

v0.5.4

No new features so far.

- Bump included nbtp to 0.6.0
- Fixed some build issue with newer compilers

v0.5.3

New features:
- `minemap` now has a `--replace` option. This allows a user to update
  an existing map with a new image without touching markers / banners
  already on that map.

Misc:
- Translations update and nbtp submodule bump

v0.5.2: translations, bugfixes

Bug fixes:

* Fixed an issue where build fails on systems with unused target_clones
  support

Stuff added:

* MinGW build with GitHub actions feat. @liushuyu
* Localization support with GNU GetText on Unix systems

v0.5.1

Bug fixes:

- Workaround a GraphicsMagick bug where very dark pixels gets
  incorrectly mapped to (0, 0, 0) but fully transparent.
  Only partially (or fully) transparent pixels may map to color code
  0-3. All other opaque pixels must not map to 0-3.

v0.5

Features:

- minemap now generates transparent color code (0) on maps if the
  corresponding input pixels are fully transparent.

Behavioral changes:

- Color palettes are now embedded in libminemap (ft. @liushuyu) and are
  no longer shipped as separate GIF files.
- GraphicsMagick is now preferred over ImageMagick on all platforms due
  to IM bug in dithering routines (that produces incorrect result).
- `--dithering` option no longer accepts an argument and uses Floyd
  Steinberg dithering algorithm from Magick library if specified.
- `--verbose` option was removed due to code restructure.

Miscellaneous:

- Fix potential out-of-bound access during argument parsing
- NBTP submodule updated to 0.3.3 (but old versions should still work)

v0.4.5

Bugfix:

- Search for palettes in the right path

v0.4.4

Features:

- Project now builds and runs on Windows (TM) + MinGW64 ft. @liushuyu
- Project now builds and runs on Mac OS
- Main programs will check for palette presence in the same directory as
  the executables to allow for a somewhat portable build

v0.4.3

Improvements:
- Bumped NBTP submodule to 0.3.0 and more human readable errors
- A new build-time tool to generate palette gpl files for use in GIMP