* [sdl2-image] Update to 2.6.2.
* [sdl2-image] Update baseline and version history.
* [sdl2pp] Update sdl2-image target name.
* [sdl2pp] Update baseline and version history.
* [sdl2-image] Fix .pc file generation.
* [sdl2-image] Visually align features in portfile.
* [sdl2-image] Shorten patch to the strict minimum.