Bug fixing round & add some emummc menus

Notable bugs fixed:
- pkg1id is now also used as foldername during fw dump
- Clearing of screen in _recursive functions is no longer hardcoded
- Folders get the correct file attributes
- first 16 MiB of partition during partitioning gets cleared now

source/tegraexplorer/tools.h

@@ -3,5 +3,5 @@
 void displayinfo();
 void displaygpio();
 int format(int mode);
-int dumpfirmware();
-void dumpusersaves();
+int dumpfirmware(int mmc);
+void dumpusersaves(int mmc);