Add a GetPath() function to common.cpp since there seems to be a lot of variations of that code floating around the codebase.

src/drivers/win/common.cpp

@@ -54,4 +54,9 @@ void AddExtensionIfMissing(std::string &name,const char * extension) {
 	//If the extension(".????") is longer then 5 characters, it's probably part of the filename. If x == -1, wasn't found
 	if ((x < (name.size() - 6)) || (x == -1))
 		name.append(extension);
+}
+
+std::string GetPath(std::string filename)
+{
+	return filename.substr(0,filename.find_last_of("/\\") + 1);
 }

src/drivers/win/common.h

@@ -54,4 +54,5 @@ void WindowBoundsCheckResize(int &windowPosX, int &windowPosY, int windowSizeX,
 void WindowBoundsCheckNoResize(int &windowPosX, int &windowPosY, long windowRight);
 void AddExtensionIfMissing(char * name,unsigned int maxsize,const char * extension);
 void AddExtensionIfMissing(std::string &name,const char * extension);
+std::string GetPath(std::string filename);
 #endif