Vim 9.0.{0314,0319}: some filetypes are not recognized (#20005)

* vim-patch:9.0.0314: VDM files are not recognized

Problem:    VDM files are not recognized.
Solution:   Add patterns for VDM files. (Alessandro Pezzoni, closes vim/vim#11004)
bf26941f40

* vim-patch:9.0.0319: Godot shader files are not recognized

Problem:    Godot shader files are not recognized.
Solution:   Add patterns for "gdshader". (Maxim Kim, closes vim/vim#11006)
d5c8f11905

runtime/lua/vim/filetype.lua

@@ -422,9 +422,11 @@ local extension = {
   gdb = 'gdb',
   gdmo = 'gdmo',
   mo = 'gdmo',
-  tres = 'gdresource',
   tscn = 'gdresource',
+  tres = 'gdresource',
   gd = 'gdscript',
+  gdshader = 'gdshader',
+  shader = 'gdshader',
   ged = 'gedcom',
   gmi = 'gemtext',
   gemini = 'gemtext',
@@ -1011,6 +1013,11 @@ local extension = {
   dsm = 'vb',
   ctl = 'vb',
   vbs = 'vb',
+  vdmpp = 'vdmpp',
+  vpp = 'vdmpp',
+  vdmrt = 'vdmrt',
+  vdmsl = 'vdmsl',
+  vdm = 'vdmsl',
   vr = 'vera',
   vri = 'vera',
   vrh = 'vera',