Implement Tool for dumping User:/save

+ Finalize readme for release of 1.2.0

source/tegraexplorer/tools.h

@@ -3,4 +3,5 @@
 void displayinfo();
 void displaygpio();
 int format(int mode);
-int dumpfirmware();
+int dumpfirmware();
+void dumpusersaves();