Update GentiumPlus font

Update to version 6.001
Upstream font file names were changes. So updated it here too.
Added Bold and Bold Italic since they are present in upstream.

Bug: T298613
Change-Id: I1c0429f6c5abac66471df0fa96738a10a7b28d04

data/fontrepo/fonts/GentiumPlus/font.ini

@@ -1,16 +1,31 @@
 [GentiumPlus]
 languages=grc
-version=1.510
+version=6.001
 license=OFL-1.1
 licensefile=OFL.txt
 url=http://scripts.sil.org/gentium
-ttf=GentiumPlus-R.ttf
-woff=GentiumPlus-R.woff
-woff2=GentiumPlus-R.woff2
+ttf=GentiumPlus-Regular.ttf
+woff=GentiumPlus-Regular.woff
+woff2=GentiumPlus-Regular.woff2
 italic=GentiumPlus Italic
+bold=GentiumPlus Bold
+bolditalic=GentiumPlus Bold Italic
+
+[GentiumPlus Bold]
+ttf=GentiumPlus-Bold.ttf
+woff=GentiumPlus-Bold.woff
+woff2=GentiumPlus-Bold.woff2
+fontweight=bold
 
 [GentiumPlus Italic]
-ttf=GentiumPlus-I.ttf
-woff=GentiumPlus-I.woff
-woff2=GentiumPlus-I.woff2
+ttf=GentiumPlus-Italic.ttf
+woff=GentiumPlus-Italic.woff
+woff2=GentiumPlus-Italic.woff2
 fontstyle=italic
+
+[GentiumPlus Bold Italic]
+ttf=GentiumPlus-BoldItalic.ttf
+woff=GentiumPlus-BoldItalic.woff
+woff2=GentiumPlus-BoldItalic.woff2
+fontstyle=italic
+fontweight=bold