Log Message:
atkmm2.36: update to 2.36.3.

atkmm 2.36.3 (stable):

Documentation:
* atkmm.h: Update link to ATK
  (Kjell Ahlstedt)
* Add README.win32.md with Win32 build documentation
  (Chun-wei Fan)
* Remove AUTHORS and add general information to README.md
  (Kjell Ahlstedt) Issue gtkmm#140

Meson build:
* Detect if we build from a git subtree
  (William Roy) Merge request gtkmm!72
* Don't copy files with configure_file()
  (Kjell Ahlstedt)
* Fix the evaluation of is_git_build on Windows
  (Kjell Ahlstedt) Issue gtkmm#131 (William Roy)
* Don't fail if warning_level=everything
  (Daniel Boles, Kjell Ahlstedt) Merge request gtkmm!87

atkmm 2.36.2 (stable):

Build:
* Support building with Visual Studio 2022
  (Chun-wei Fan)
* Meson build: Specify 'check' option in run_command()
  Will be necessary with future versions of Meson.
* Meson build: Perl is not required by new versions of mm-common
* Meson build: Avoid unnecessary configuration warnings
* Meson build: Require meson >= 0.55.0
  (Kjell Ahlstedt)
* Require atk >= 2.33.3
  Not a new requirement, but previously it was not specified in
  configure.ac and meson.build.
  (Kjell Ahlstedt)