Unify font license abbreviations.

1. Updated license abbreviations in font.ini
2. Removed duplicate license file in Suwannaphum
3. Corrected license for some fonts
4. Added licenses/LICENSES file to note license related issues and
abbreviations

Bug: 53281
Change-Id: Ia3aa6396cf5197c6baaff716d27682dd23b7674e

data/fontrepo/fonts/Nokora/font.ini

@@ -1,7 +1,7 @@
 [Nokora Regular]
 languages=km
 version=1.10
-license=Apache 2.0
+license=Apache-2.0
 licensefile=apache-2.0.txt
 url=http://www.google.com/fonts/specimen/Nokora
 ttf=Nokora-Regular.ttf