vim-patch:9.1.1045: filetype: N-Tripels and TriG files are not recognized (#32170)

Problem:  filetype: N-Tripels and TriG files are not recognized
Solution: detect '*.nt' files as ntriples filetype and '*.trig' files
          as trig filetype (Gordian Dziwis)

closes: vim/vim#16493

c04334c33f

Co-authored-by: Gordian Dziwis <gordian@dziw.is>

runtime/lua/vim/filetype.lua

@@ -845,6 +845,7 @@ local extension = {
   tr = 'nroff',
   nsi = 'nsis',
   nsh = 'nsis',
+  nt = 'ntriples',
   nu = 'nu',
   obj = 'obj',
   objdump = 'objdump',
@@ -1240,6 +1241,7 @@ local extension = {
   toml = 'toml',
   tpp = 'tpp',
   treetop = 'treetop',
+  trig = 'trig',
   slt = 'tsalt',
   tsscl = 'tsscl',
   tssgm = 'tssgm',