Added podspecs for NRGramKit 1.1 and 1.4

Strangely, they were missing from CocoaPods Specs repo— who knows why the author of NRGramKit never added them for any version of NRGramKit past 1.0.

• Added NRGramKit 1.1 podspec (copied from NextRoot/NRGramKit@8960fb8d6ecec00b586fb18c5ca37b590ea4efb3)
• Added NRGramKit 1.4 podspec (copied from NextRoot/NRGramKit@791bbb8d3c908985092718666bf3d4f063823075)