vim-patch:f77a0e9: runtime(cmakecache): include cmakecache ftplugin file

closes: vim/vim#15175

https://github.com/vim/vim/commit/f77a0e9f417d41a3c35de86a42a75d10b633f19a

Co-authored-by: Riley Bruins <ribru17@hotmail.com>

runtime/ftplugin/cmakecache.vim

@@ -0,0 +1,13 @@
+" Vim filetype plugin
+" Language:	cmakecache - CMakeCache.txt files generated by CMake
+" Maintainer:	Riley Bruins <ribru17@gmail.com>
+" Last Change:	2024 Jul 06
+
+if exists('b:did_ftplugin')
+  finish
+endif
+let b:did_ftplugin = 1
+
+setl comments=:#,:// commentstring=//\ %s
+
+let b:undo_ftplugin = 'setl com< cms<'