feat: add hlsl_functionality_1 to c interface options

glslang/Include/glslang_c_interface.h

@@ -220,6 +220,7 @@ typedef struct glslang_input_s {
     const char* entrypoint; // This is what actually gets called by the GPU. Best to leave it at 'main' or something so opengl doesn't trip over itself.
     const char* source_entrypoint; // This just renames the source entrypoint in the code to 'entrypoint' and should be what is used to set different entrypoint names.
     int invert_y;
+    int hlsl_functionality_1;
     int default_version;
     glslang_profile_t default_profile;
     int force_default_version_and_profile;