First pass adding vita support

cmake/targets/target-helloworld-vita/CMakeLists.txt

@@ -0,0 +1,21 @@
+# Copyright (c) 2023 Dominic Masters
+# 
+# This software is released under the MIT License.
+# https://opensource.org/licenses/MIT
+
+set(DAWN_BUILDING dawnhelloworld CACHE INTERNAL ${DAWN_CACHE_TARGET})
+set(DAWN_TARGET_VITA true CACHE INTERNAL ${DAWN_CACHE_TARGET})
+set(DAWN_BUILD_HOST_LIBS "" CACHE INTERNAL ${DAWN_CACHE_TARGET})
+set(DAWN_TARGET_NAME "HelloWorld" CACHE INTERNAL ${DAWN_CACHE_TARGET})
+
+# Properties
+set(DAWN_VITA_APP_NAME "Hello Vita" CACHE INTERNAL ${DAWN_CACHE_TARGET})
+set(DAWN_VITA_TITLEID  "DAWN00000" CACHE INTERNAL ${DAWN_CACHE_TARGET})
+set(DAWN_VITA_VERSION  "01.00" CACHE INTERNAL ${DAWN_CACHE_TARGET})
+
+# Toolchain
+if(DEFINED ENV{VITASDK})
+  set(CMAKE_TOOLCHAIN_FILE "$ENV{VITASDK}/share/vita.toolchain.cmake" CACHE INTERNAL ${DAWN_CACHE_TARGET})
+else()
+  message(FATAL_ERROR "Please define VITASDK to point to your SDK path!")
+endif()