git: add gr and GR bindings to evilfiied magit buffers
git: add gr and GR bindings to evilfiied magit buffers

since magit uses keymap text properties we need to explicitly define
them in each section keymap. Could be refactored a bit.

tsonntag/dotemacs,tsonntag/dotemacs,tsonntag/dotemacs,tsonntag/dotemacs