Newer revisions of nothings/stb have switched to stb_image_resize2.h and
moved the original header to deprecated/stb_image_resize.h since [1].
Pin down the version to prevent future breaking changes.
[1]: c4bbb6e75f
Allows us to use this as a Meson subproject which means that recursive cloning doesn't matter (Meson resolves it for subprojects).
Given this subproject doesn't have a meson file, doing subproject() on it would fail, so:
Make a wrap file with an overlay that declares a proper dependency.
Signed-off-by: Joshua Ashton <joshua@froggi.es>