SDL3 port (#1756)

* update to SDL 3.2.0

* remove SDL wrap

* fix darwin and windows CI

* update build box, correct msys sdl3 dependency

* port leftovers from renderer backend to SDL3

* remove SDL main dep
the main implementation is now included in a header

* main.c: use SDL_main.h

This needs to be included to work.

* ci: use vcpkg and pkgconf to support SDL3 on MSVC

* ci: use 7z to create zip

* renwindow: create texture and surface suitable for the display

* system: remove trailing whitespace

* renderer: fix trailing whitespace

* system: fix checking the wrong argument

* system: port rmdir and stat to SDL3 API

* system: remove unneeded API level check

* system: fix wrong parameter index

* system: make set_window_hit_test and set_window_bordered accept a window

* docs/system: update docs

* system: restore some comments

* docs/system: add missing documentation for system.text_input

* system: use SDL_setenv_unsafe

* system: add back comment for setenv

* system,renderer: remove unnecessary SDL_ClearError calls

---------

Co-authored-by: takase1121 <20792268+takase1121@users.noreply.github.com>
(cherry picked from commit 2716f14b6903f055f6bdf010a7e4a3d040cf059d)

subprojects/sdl2.wrap

@@ -1,15 +0,0 @@
-[wrap-file]
-directory = SDL2-2.30.3
-source_url = https://github.com/libsdl-org/SDL/releases/download/release-2.30.3/SDL2-2.30.3.tar.gz
-source_filename = SDL2-2.30.3.tar.gz
-source_hash = 820440072f8f5b50188c1dae104f2ad25984de268785be40c41a099a510f0aec
-patch_filename = sdl2_2.30.3-2_patch.zip
-patch_url = https://wrapdb.mesonbuild.com/v2/sdl2_2.30.3-2/get_patch
-patch_hash = 2c08bde67b3896db88e01481c379322625ea6c928cdb68ead91d0e3749863bc2
-source_fallback_url = https://github.com/mesonbuild/wrapdb/releases/download/sdl2_2.30.3-2/SDL2-2.30.3.tar.gz
-wrapdb_version = 2.30.3-2
-
-[provide]
-sdl2 = sdl2_dep
-sdl2main = sdl2main_dep
-sdl2_test = sdl2_test_dep