Disable Quick Edit Mode with mouse support on conhost

[jvalkeal]

This is a windows conhost(good 'ol plain cmd) related annoyance where mouse events are not sent if Quick Edit Mode is enabled(as it is by default). This is more clearly discussed in https://stackoverflow.com/questions/46795072/how-to-get-mouse-input-inside-a-c-console-program-on-windows-10/46802726#46802726.

We should simply use combination of ENABLE_QUICK_EDIT_MODE and ENABLE_EXTENDED_FLAGS to disable/restore it if mouse is requested via terminals trackMouse function.