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',

test/old/testdir/test_filetype.vim

@@ -549,6 +549,7 @@ func s:GetFilenameChecks() abort
     \ 'nqc': ['file.nqc'],
     \ 'nroff': ['file.tr', 'file.nr', 'file.roff', 'file.tmac', 'file.mom', 'tmac.file'],
     \ 'nsis': ['file.nsi', 'file.nsh'],
+    \ 'ntriples': ['file.nt'],
     \ 'nu': ['file.nu'],
     \ 'obj': ['file.obj'],
     \ 'objdump': ['file.objdump', 'file.cppobjdump'],
@@ -814,6 +815,7 @@ func s:GetFilenameChecks() abort
     \ 'tpp': ['file.tpp'],
     \ 'trace32': ['file.cmm', 'file.t32'],
     \ 'treetop': ['file.treetop'],
+    \ 'trig': ['file.trig'],
     \ 'trustees': ['trustees.conf'],
     \ 'tsalt': ['file.slt'],
     \ 'tsscl': ['file.tsscl'],