Adds :GhPrBlame, :GhPrList, :GhPrView

[willjp]

Exposes gh pr commands to vim.
Buffer mappings, and open methods are customizable.

" Configuration
" ===========

" buffers
let g:vim_github_cli_opencmd_pr_list = 'vert sb'
let g:vim_github_cli_opencmd_pr_view = 'vert sb'

" hotkeys
let g:vim_github_cli_pr_view_map = '<Enter>'
let g:vim_github_cli_pr_view_web_map = '<c-o>'


" Commands
" =========
:GhPrBlame     " display PR for line within vim (<c-o> to open in webbrowser)
:GhPrBlame -w  " display PR for line in web-browser (also wraps other `gh pr` params)

:GhPrList                     " display all PRs that changed current file
:GhPrList --since=2015/01/01  " also wraps other `git log` params
" <Enter> displays PR in vim
" <c-o> opens PR in webbrowser

:GhPrView 100     " display PR #100 in vim
:GhPrView 100 -w  " display PR #100 in webbrowser