[vala] (24 commits) Non-fast-forward update to branch wip/meson

[Rico Tzschichholz <ricotz src gnome org>]

The branch 'wip/meson' 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:

  377af9e... meson: Add initial build support
  5f12e05... meson: Allow static builds
  c5c6768... meson: Compile everything with stricter cflags
  cc0d016... WIP meson: Add tests
  63acce0... WIP meson: Add internal-api-docs
  5fedbc5... Pass LD_LIBRARY_PATH as "env" where needed
  f227abc... Broken evaluation of "Requires.private: gmodule-no-export-2
  592e563... WIP meson: Add meson-bootstrap.sh

Commits added to the branch:

  192c6df... build: At least valac 0.16.1 is required (*)
  ecdb9b8... docs: Bump vala version references in README.md (*)
  aeb38b2... docs: Add myself to AUTHORS (*)
  fe3625d... vala: Accept NullType as generic type argument (*)
  40c017f... tests: Add missing generics/null-type.c-expected (*)
  9a6dd63... tests: Add "integer/float literal" tests to increase covera (*)
  172694e... gio-2.0: Update to 2.71.0~a0d2efdc (*)
  21d26fd... gtk4: Update to 4.5.0~da5efea6 (*)
  1a59fda... glib-2.0: Update 2.70 symbols (*)
  dbe8d2a... Bump version suffix to 0.56 (*)
  40a9238... vala: Add optional SourceReference parameter to DataType cl (*)
  9bd69d2... vala: Preserve the source reference when resolving data typ (*)
  ce15989... vala: Set source references of created DataType instances i (*)
  76a08b8... vala: Drop RealLiteral.get_type_name() (*)
  b60266e... Set TypeParameter as symbol of GenericType (*)
  0b3c86e... glib-2.0: Add Unicode 14.0 symbols (*)
  7245d7d... meson: Add initial build support
  c4dcc60... meson: Allow static builds
  3d7115b... meson: Compile everything with stricter cflags
  8ebb4d7... WIP meson: Add tests
  bf8fd25... WIP meson: Add internal-api-docs
  0751ed5... Pass LD_LIBRARY_PATH as "env" where needed
  968c578... Broken evaluation of "Requires.private: gmodule-no-export-2
  a0e47fb... WIP meson: Add meson-bootstrap.sh

(*) This commit already existed in another branch; no separate mail sent