vim-patch:9.1.0234: filetype: support for Intel HEX files is lacking

Problem:  filetype: support for Intel HEX files is lacking
Solution: Add more file extensions that are typical for Intel HEX files
          (Wu, Zhenyu)

Reference: https://en.wikipedia.org/wiki/Intel_HEX

closes: vim/vim#14355

e523dd9803

Co-authored-by: Wu, Zhenyu <wuzhenyu@ustc.edu>

runtime/lua/vim/filetype.lua

@@ -504,7 +504,16 @@ local extension = {
   vc = 'hercules',
   heex = 'heex',
   hex = 'hex',
+  ['a43'] = 'hex',
+  ['a90'] = 'hex',
   ['h32'] = 'hex',
+  ['h80'] = 'hex',
+  ['h86'] = 'hex',
+  ihex = 'hex',
+  ihe = 'hex',
+  ihx = 'hex',
+  int = 'hex',
+  mcs = 'hex',
   hjson = 'hjson',
   m3u = 'hlsplaylist',
   m3u8 = 'hlsplaylist',