[UCRT] Add CMake files

sdk/lib/ucrt/internal/internal.cmake

@@ -0,0 +1,17 @@
+
+list(APPEND UCRT_INTERNAL_SOURCES
+    internal/CreateProcessA.cpp
+    internal/GetModuleFileNameA.cpp
+    internal/initialization.cpp
+    internal/LoadLibraryExA.cpp
+    internal/locks.cpp
+    internal/OutputDebugStringA.cpp
+    internal/peb_access.cpp
+    internal/per_thread_data.cpp
+    internal/report_runtime_error.cpp
+    internal/SetCurrentDirectoryA.cpp
+    internal/SetEnvironmentVariableA.cpp
+    internal/shared_initialization.cpp
+    internal/winapi_thunks.cpp
+    internal/win_policies.cpp
+)