[atk/gdk-pixbuf/graphene/gtk/gtk3/harfbuzz/pango] Add introspection feature

[mkhon]

Describe the pull request

• What does your PR fix?

Implement introspection feature for gtk ports

• Which triplets are supported/not supported? Have you updated the CI baseline?

all

• Does your PR follow the maintainer guide?

Yes

• If you have added/updated a port: Have you run ./vcpkg x-add-version --all and committed the result?

Yes

If you are still working on the PR, open it as a Draft: https://github.blog/2019-02-14-introducing-draft-pull-requests/

[Cheney-W]

WARNING: Recommend using either -Dbuildtype or -Doptimization + -Ddebug. Using both is redundant since they override each other. See: https://mesonbuild.com/Builtin-options.html#build-type-options
The Meson build system
Version: 0.62.1
Source dir: D:\buildtrees\graphene\src\graphene-1-d2ab5b7af5.clean
Build dir: D:\buildtrees\graphene\x86-windows-dbg
Build type: native build

..\src\graphene-1-d2ab5b7af5.clean\meson.build:1:0: ERROR: Value "false" (of type "string") for combo option "Enable GObject Introspection (depends on GObject)" is not one of the choices. Possible choices are (as string): "enabled", "disabled", "auto".

A full log can be found at D:\buildtrees\graphene\x86-windows-dbg\meson-logs\meson-log.txt

All of the CI error logs.

[Cheney-W]

Pinging @mkhon for response. Is work still being done for this PR?

[Cheney-W]

Introspection feature passed with following triplets:
x86-windows
x64-windows

[Cheney-W]

@mkhon Could you please solve the conflicts? Thank you!

[BillyONeal]

Looks good, thank you for the new feature :)