Add nim support

ftplugin/nim.vim

@@ -0,0 +1,27 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'nim') == -1
+  
+if exists("b:nim_loaded")
+  finish
+endif
+
+let b:nim_loaded = 1
+
+let s:cpo_save = &cpo
+set cpo&vim
+
+call nim#init()
+
+setlocal formatoptions-=t formatoptions+=croql
+setlocal comments=:##,:#
+setlocal commentstring=#\ %s
+setlocal omnifunc=NimComplete
+setlocal suffixesadd=.nim 
+setlocal expandtab  "Make sure that only spaces are used
+
+compiler nim
+
+let &cpo = s:cpo_save
+unlet s:cpo_save
+
+
+endif