Add syntax files from upstream vim repository

syntax/vgrindefs.vim

@@ -0,0 +1,49 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'vim') == -1
+  
+" Vim syntax file
+" Language:	Vgrindefs
+" Maintainer:	Bram Moolenaar <Bram@vim.org>
+" Last Change:	2005 Jun 20
+
+" The Vgrindefs file is used to specify a language for vgrind
+
+" Quit when a (custom) syntax file was already loaded
+if exists("b:current_syntax")
+  finish
+endif
+
+" Comments
+syn match vgrindefsComment "^#.*"
+
+" The fields that vgrind recognizes
+syn match vgrindefsField ":ab="
+syn match vgrindefsField ":ae="
+syn match vgrindefsField ":pb="
+syn match vgrindefsField ":bb="
+syn match vgrindefsField ":be="
+syn match vgrindefsField ":cb="
+syn match vgrindefsField ":ce="
+syn match vgrindefsField ":sb="
+syn match vgrindefsField ":se="
+syn match vgrindefsField ":lb="
+syn match vgrindefsField ":le="
+syn match vgrindefsField ":nc="
+syn match vgrindefsField ":tl"
+syn match vgrindefsField ":oc"
+syn match vgrindefsField ":kw="
+
+" Also find the ':' at the end of the line, so all ':' are highlighted
+syn match vgrindefsField ":\\$"
+syn match vgrindefsField ":$"
+syn match vgrindefsField "\\$"
+
+" Define the default highlighting.
+" Only used when an item doesn't have highlighting yet
+hi def link vgrindefsField	Statement
+hi def link vgrindefsComment	Comment
+
+let b:current_syntax = "vgrindefs"
+
+" vim: ts=8
+
+endif