cmake: add SDL_FULL_VERSION target property containing full SDL version

(cherry picked from commit d73e74f)

Author: madebr

CMakeLists.txt

@@ -3999,6 +3999,8 @@ if(SDL_SHARED)
   set_property(TARGET SDL3-shared PROPERTY INTERFACE_SDL3_SHARED TRUE)
   set_property(TARGET SDL3-shared APPEND PROPERTY COMPATIBLE_INTERFACE_STRING "SDL_VERSION")
   set_property(TARGET SDL3-shared PROPERTY INTERFACE_SDL_VERSION "SDL${SDL3_VERSION_MAJOR}")
+  set_property(TARGET SDL3-shared APPEND PROPERTY EXPORT_PROPERTIES "SDL_FULL_VERSION")
+  set_property(TARGET SDL3-shared PROPERTY SDL_FULL_VERSION "${PROJECT_VERSION}")
   if(NOT CMAKE_VERSION VERSION_LESS "3.16")
     target_precompile_headers(SDL3-shared PRIVATE "$<$<OR:$<COMPILE_LANGUAGE:C>,$<COMPILE_LANGUAGE:CXX>>:${PROJECT_SOURCE_DIR}/src/SDL_internal.h>")
   endif()
@@ -4023,6 +4025,8 @@ if(SDL_STATIC)
   set_property(TARGET SDL3-static PROPERTY INTERFACE_SDL3_SHARED FALSE)
   set_property(TARGET SDL3-static APPEND PROPERTY COMPATIBLE_INTERFACE_STRING "SDL_VERSION")
   set_property(TARGET SDL3-static PROPERTY INTERFACE_SDL_VERSION "SDL${SDL3_VERSION_MAJOR}")
+  set_property(TARGET SDL3-static APPEND PROPERTY EXPORT_PROPERTIES "SDL_FULL_VERSION")
+  set_property(TARGET SDL3-static PROPERTY SDL_FULL_VERSION "${PROJECT_VERSION}")
   if(NOT CMAKE_VERSION VERSION_LESS "3.16")
     target_precompile_headers(SDL3-static PRIVATE "$<$<OR:$<COMPILE_LANGUAGE:C>,$<COMPILE_LANGUAGE:CXX>>:${PROJECT_SOURCE_DIR}/src/SDL_internal.h>")
   endif()