CMake: StringProcessing: Catalyst support

Enable catalyst support in Apple StringProcessing builds

Author: etcwilde

Runtimes/Supplemental/StringProcessing/CMakeLists.txt

@@ -42,6 +42,7 @@ include(EmitSwiftInterface)
 include(InstallSwiftInterface)
 include(PlatformInfo)
 include(ResourceEmbedding)
+include(CatalystSupport)
 
 option(${PROJECT_NAME}_INSTALL_NESTED_SUBDIR "Install libraries under a platform and architecture subdirectory" ON)
 set(${PROJECT_NAME}_INSTALL_LIBDIR "${CMAKE_INSTALL_LIBDIR}/swift$<$<NOT:$<BOOL:${BUILD_SHARED_LIBS}>>:_static>$<$<BOOL:${PROJECT_NAME}_INSTALL_NESTED_SUBDIR>:/${${PROJECT_NAME}_PLATFORM_SUBDIR}/${${PROJECT_NAME}_ARCH_SUBDIR}>")