fix crashes, add custom texture cache, load textures from load directory

src/common/common_paths.h

@@ -45,6 +45,7 @@
 #define DLL_DIR "external_dlls"
 #define SHADER_DIR "shaders"
 #define DUMP_DIR "dump"
+#define LOAD_DIR "load"
 
 // Filenames
 // Files in the directory returned by GetUserPath(UserPath::LogDir)

src/common/file_util.cpp

@@ -713,6 +713,7 @@ void SetUserPath(const std::string& path) {
     g_paths.emplace(UserPath::DLLDir, user_path + DLL_DIR DIR_SEP);
     g_paths.emplace(UserPath::ShaderDir, user_path + SHADER_DIR DIR_SEP);
     g_paths.emplace(UserPath::DumpDir, user_path + DUMP_DIR DIR_SEP);
+    g_paths.emplace(UserPath::LoadDir, user_path + LOAD_DIR DIR_SEP);
 }
 
 const std::string& GetUserPath(UserPath path) {

src/common/file_util.h

@@ -27,6 +27,7 @@ enum class UserPath {
     ConfigDir,
     DLLDir,
     DumpDir,
+    LoadDir,
     LogDir,
     NANDDir,
     RootDir,