(#16266) sdl2: refactor access to dependencies for conan 2.0 compatib…

…ility

* sdl: refactor access to dependencies for conan 2.0 compatibility

* sdl2: remove default dependency on nas

* sdl: newest cmake

* sdl: add package_type

* sdl2: remove old versions and sync wayland requirement

* sdl2: fix libiconv on macos

* sdl: remove logic for older versions and fix libiconv logic on macOS

---------

Co-authored-by: Chris Mc <prince.chrismc@gmail.com>

recipes/sdl/all/conandata.yml

@@ -14,31 +14,8 @@ sources:
   "2.0.20":
     url: "https://www.libsdl.org/release/SDL2-2.0.20.tar.gz"
     sha256: "c56aba1d7b5b0e7e999e4a7698c70b63a3394ff9704b5f6e1c57e0c16f04dd06"
-  "2.0.18":
-    url: "https://www.libsdl.org/release/SDL2-2.0.18.tar.gz"
-    sha256: "94d40cd73dbfa10bb6eadfbc28f355992bb2d6ef6761ad9d4074eff95ee5711c"
-  "2.0.16":
-    url: "https://www.libsdl.org/release/SDL2-2.0.16.tar.gz"
-    sha256: "65be9ff6004034b5b2ce9927b5a4db1814930f169c4b2dae0a1e4697075f287b"
-  "2.0.14":
-    url: "https://www.libsdl.org/release/SDL2-2.0.14.tar.gz"
-    sha256: "d8215b571a581be1332d2106f8036fcb03d12a70bae01e20f424976d275432bc"
 patches:
   "2.0.20":
     - patch_file: "patches/0004-2.0.20-ndk.patch"
       patch_type: "conan"
       patch_description: "ndk patch"
-  "2.0.16":
-    - patch_file: "patches/0003-2.0.16-wayland-scanner-buildrequires.patch"
-      patch_type: "conan"
-      patch_description: "wayland scanner buildrequires"
-  "2.0.14":
-    - patch_file: "patches/0001-fix-cmake-ios-tvos.patch"
-      patch_type: "conan"
-      patch_description: "fix cmake ios tvos"
-    - patch_file: "patches/0002-mingw-improvements.patch"
-      patch_type: "conan"
-      patch_description: "mingw improvements"
-    - patch_file: "patches/0003-2.0.14-wayland-scanner-buildrequires.patch"
-      patch_type: "conan"
-      patch_description: "wayland scanner buildrequires"