Draft: meson: Full static linking of gstreamer-full

This merge request allows to bundle gstreamer, a selection of plugin and its dependencies recursively in a single libgstreamer-full library. Before, gstreamer-full created static libraries for all of the dependencies and had a huge pkg-config file with all of the linking arguments. This change is meant to serve as a base for creating precompiled library binaries that can be downloaded, for example, when building the rust bindings without having to install gstreamer locally.

This change depends on these meson PRs:

• #13768: Adds a recursive argument to as_link_whole that makes the dependency statically link all of the libraries of all of its dependencies (excluding system libraries).
• #13769: Since we already have all of the objects from libraries inside gstreamer-full, we can override the pkg-config files of the dependencies to point to it. To do this reliably, the best way I could find (that included all subdependencies) was to add a get_link_whole_targets to build targets so that we could get their names. This works but there might be a cleaner way of doing it.

Since we are using new meson features, the minimum meson version needs to be updated.

Additionally, there were some issues in a few subprojects that made the static linking fail:

• In subprojects/gst-plugins-base/ext/gl/meson.build, cc.has_header was being called on libdrm even if it was built internally, making wrap-mode=forcefallback fail.
• The gudev dependency was not detecting that introspection was disabled, which compiled gobject-introspection that at the moment causes problem with gstreamer-full, so I passed the option explicitly.
• The sqlite3 wrap was adding shell.c to the library sources, which contains a main function. This may cause duplicate symbol issues when building tools. I updated the wrap version to match wrapdb#1725 where this source is removed.

Unresolved questions:

• When linking against gstreamer-full in gstreamer-rs, the standard c++ library needs to be explicitly added to prevent unresolved symbols. Right now I am adding it to gst_full_c_flags if the compiler supports it, but there must be a better way of doing this. Meson should detect if the libraries it has are build using c++ and add this.
• I have not tested this in Windows, so I'm not sure if the external dependency will be correct there.

At the moment, default plugins in base, good and ugly are linking correctly. I have not finished testing all of the plugins in bad, but I already fixed some of them. The setup command I was using for testing is this (make sure to use the meson patches):

Setup command

meson setup --reconfigure \
    "--default-library=static" \
    "--wrap-mode=forcefallback" \
    "--auto-features=auto" \
    "-Dgst-full-target-type=static_library" \
    "-Dgst-full-libraries=*" \
    \
    "-Dbase=enabled" \
    "-Dgood=enabled" \
    "-Dbad=enabled" \
    "-Dugly=enabled" \
    \
    "-Ddevtools=enabled" \
    "-Dges=enabled" \
    "-Dlibav=enabled" \
    "-Drtsp_server=enabled" \
    "-Dtools=enabled" \
    \
    "-Ddoc=disabled" \
    "-Dexamples=disabled" \
    "-Dintrospection=disabled" \
    "-Dgpl=disabled" \
    "-Dgst-examples=disabled" \
    "-Dpython=disabled" \
    "-Dsharp=disabled" \
    "-Dtests=disabled" \
    "-Dvaapi=disabled" \
    \
    "-Dgst-plugins-base:gl=enabled" \
    "-Dgst-plugins-base:playback=enabled" \
    "-Dgst-plugins-base:x11=enabled" \
    "-Dgst-plugins-bad:va=enabled" \
    "-Dgst-plugins-bad:curl=disabled" \
    "-Dgst-plugins-bad:decklink=disabled" \
    "-Dgst-plugins-bad:dtls=disabled" \
    "-Dgst-plugins-bad:gtk3=disabled" \
    "-Dgst-plugins-bad:iqa=disabled" \
    "-Dgst-plugins-bad:lc3=disabled" \
    "-Dgst-plugins-bad:nvcodec=disabled" \
    "-Dgst-plugins-bad:openal=disabled" \
    "-Dgst-plugins-bad:opencv=disabled" \
    "-Dgst-plugins-bad:openexr=disabled" \
    "-Dgst-plugins-bad:vulkan=disabled" \
    "-Dgst-plugins-bad:wayland=disabled" \
    \
    "-Dglib:tests=false" \
    "-Dharfbuzz:freetype=disabled" \
    "-Dharfbuzz:cairo=disabled" \
    "-Dpixman:demos=disabled" \
    "-Dcairo:png=false" \
    \
    build

Closes #1459.