graphics: add experimental Pro mode and linear PSSR

Co-authored-by: Joshua Jayasingh <joshuajayasingh08@gmail.com>

src/loader/systemContent.h

@@ -11,6 +11,7 @@
 namespace Loader {
 
 void     SystemContentLoadParamSfo(const std::filesystem::path& file_name);
+bool     SystemContentIsTrinityMode();
 bool     SystemContentParamSfoGetInt(const char* name, int32_t* value);
 bool     SystemContentParamSfoGetString(const char* name, std::string* value);
 bool     SystemContentParamSfoGetString(const char* name, char* value, size_t value_size);