Beginning of working with ZXing library. Created a scanning activity, included ZXing library in the build gradle. Will be interacting with the Barcode Scanner app.
Not complete yet.
ZXing Work

Trying to see what a barcode scan will return. Emulator/computer is
horrible at scanning books. Need some help testing before continuing to
see if scan will return ISBN.
no actual changes
Adding to ZXing feature.
Gives an error after the book is scanned in the Barcode Scanner and then returns to the home screen of the app.
Merge remote-tracking branch 'origin/scanning' into scanning
Finished ZXing part of scanning book feature.
Just need to direct the results to the book details screen.
Merge scanning branch into master

Conflicts:
	app/src/main/java/com/merqurius/home/HomeScreen.java