add vim command Silent

Adds a command that executes a subprocess silently and forces a redraw
to avoid display issues.

home/modules/vim/vimrc

@@ -152,3 +152,6 @@ packloadall
 silent! helptags ALL
 
 set omnifunc=ale#completion#OmniFunc
+
+command! -nargs=1 RunBuf execute ':let job = job_start("<args>", {"out_io": "buffer", "out_name": "<args>"})'
+autocmd BufWritePost <buffer> RunBuf make