V1.2.0 Release: Implemented Data_Packet and methods GetImage() and GetRawImage().

Other changes:
   - Memory optimizations.
   - Some minor fixes in other methods.
   - Tested with GT-511C3: baud rates 38400 and 57600 work pretty well.

Author: Fasgort

library.json

@@ -7,7 +7,7 @@
     "type": "git",
     "url": "https://github.com/Fasgort/Fingerprint_Scanner-TTL.git"
   },
-  "version": "1.1.1",
+  "version": "1.2.0",
   "frameworks": "arduino",
   "platforms": "atmelavr"
 }

library.properties

@@ -1,5 +1,5 @@
 name=Fingerprint Scanner TTL
-version=1.1.0
+version=1.2.0
 author=Josh Hawley, modified by David López Chica
 maintainer=David López Chica
 sentence=Arduino examples for ADH-Tech's Fingerprint Scanners.