Add ES 3.0 to CMakeOptions (#3514)

CMakeOptions.txt

@@ -4,7 +4,7 @@ include(EnumOption)
 
 enum_option(PLATFORM "Desktop;Web;Android;Raspberry Pi;DRM" "Platform to build for.")
 
-enum_option(OPENGL_VERSION "OFF;4.3;3.3;2.1;1.1;ES 2.0" "Force a specific OpenGL Version?")
+enum_option(OPENGL_VERSION "OFF;4.3;3.3;2.1;1.1;ES 2.0;ES 3.0" "Force a specific OpenGL Version?")
 
 # Configuration options
 option(BUILD_EXAMPLES "Build the examples." ${RAYLIB_IS_MAIN})

cmake/LibraryConfigurations.cmake

@@ -105,6 +105,8 @@ if (NOT ${OPENGL_VERSION} MATCHES "OFF")
         set(GRAPHICS "GRAPHICS_API_OPENGL_11")
     elseif (${OPENGL_VERSION} MATCHES "ES 2.0")
         set(GRAPHICS "GRAPHICS_API_OPENGL_ES2")
+    elseif (${OPENGL_VERSION} MATCHES "ES 3.0")
+        set(GRAPHICS "GRAPHICS_API_OPENGL_ES3")
     endif ()
     if ("${SUGGESTED_GRAPHICS}" AND NOT "${SUGGESTED_GRAPHICS}" STREQUAL "${GRAPHICS}")
         message(WARNING "You are overriding the suggested GRAPHICS=${SUGGESTED_GRAPHICS} with ${GRAPHICS}! This may fail")