[pangomm] (4 commits) Non-fast-forward update to branch master.msvc-meson.improvements

[Chun-wei Fan <fanchunwei src gnome org>]

The branch 'master.msvc-meson.improvements' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  7d4d9a7... Meson: allow maintainer builds on Visual Studio too
  f3d35fe... meson.build: Look for glibmm with pkg-config on MSVC too
  481aaaf... meson: Build generate_extra_defs with Visual Studio too
  2edccb2... meson: Ignore warning C4251 and C4275 on MSVC builds

Commits added to the branch:

  436ec34... Meson: allow maintainer builds on Visual Studio too
  4217632... meson.build: Look for glibmm with pkg-config on MSVC too
  e9ddd16... meson: Build generate_extra_defs with Visual Studio too
  818c7b4... meson: Ignore warning C4251 and C4275 on MSVC builds