[ADD][VIM] Git file log mapping

<Leader>gl will open a new tab containing the history of the current
buffer in a location list as a series of git object.

vim/.vimrc

@@ -255,6 +255,8 @@ nnoremap <Leader>ga :Git add %:p<CR><CR>
 nnoremap <Leader>gs :Gstatus<CR>
 " Open diff view of current buffer: the up/left window is the current index
 nnoremap <Leader>gd :Gdiffsplit!<CR>
+" Open current file log in new tab, populate its location list with history
+nnoremap <Leader>gl :sp<CR><C-w>T:Gllog --follow -- %:p<CR>
 " Use git-mv and rename the buffer, backspace and add '!' to use the '-f' flag
 nnoremap <Leader>gm :Gmove<Space>
 " Open a buffer to the left with blame information