Added a way for platforms to define a custom resource pack location.

core/config/project_settings.cpp

@@ -399,6 +399,14 @@ Error ProjectSettings::_setup(const String &p_path, const String &p_main_pack, b
 		}
 #endif
 
+		if (!found) {
+			String crl = OS::get_singleton()->get_custom_platform_resource_pack_location();
+
+			if (!crl.empty()) {
+				found = _load_resource_pack(crl);
+			}
+		}
+
 		if (!found) {
 			// Try to load data pack at the location of the executable.
 			// As mentioned above, we have two potential names to attempt.

core/os/os.h

@@ -687,6 +687,8 @@ class OS {
 
 	virtual void process_and_drop_events() {}
 
+	virtual String get_custom_platform_resource_pack_location() { return String(); }
+
 	OS();
 	virtual ~OS();
 };