[gnome-builder] (10 commits) Non-fast-forward update to branch wip/tintou/toolchain

[Corentin Noël <corentinnoel src gnome org>]

The branch 'wip/tintou/toolchain' 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:

  d0478c5... toolchain: add the IdeToolchain object
  9aac813... Changed the IdeToolchain to be more generic, created IdeSim
  63c2874... Replace load by load_async/finish and use toolchain-added/r
  340436a... Simplify the code, add a load method to CMake and Meson too
  96ac681... Make GbpCMakeToolchain and GbpMesonPlugin IdeSimpleToolchai
  630df59... Make IdeToolchainManager an GAsyncInitable
  9b2c4b9... Do not attempt to load the toolchain when the manager is no
  7e8023e... meson: make the toolchain creation a build stage
  b4f73b3... toolchain: add and fix documentation

Commits added to the branch:

  5b53878... sysroot: use IdeTriplet to handle the architecture triplet (*)
  c879cf1... toolchain: add the IdeToolchain object
  697af90... Changed the IdeToolchain to be more generic, created IdeSim
  cfd070d... Replace load by load_async/finish and use toolchain-added/r
  7061f4b... Simplify the code, add a load method to CMake and Meson too
  6110921... Make GbpCMakeToolchain and GbpMesonPlugin IdeSimpleToolchai
  09d2856... Make IdeToolchainManager an GAsyncInitable
  6b41d7b... Do not attempt to load the toolchain when the manager is no
  de7b30c... meson: make the toolchain creation a build stage
  556ecda... toolchain: add and fix documentation

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