patch 9.1.0610: filetype: OpenGL Shading Language files are not detected

Problem:  filetype: OpenGL Shading Language files are not detected
Solution: detect various file extensions as GLSL filetype, include
          indent and syntax script, do no longer recognize '*.comp'
          as Mason filetype (Gregory Anders)

closes: #15317

Signed-off-by: Gregory Anders <greg@gpanders.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

src/testdir/test_filetype.vim

@@ -295,7 +295,7 @@ def s:GetFilenameChecks(): dict<list<string>>
     gitsendemail: ['.gitsendemail.msg.xxxxxx'],
     gkrellmrc: ['gkrellmrc', 'gkrellmrc_x'],
     gleam: ['file.gleam'],
-    glsl: ['file.glsl'],
+    glsl: ['file.glsl', 'file.vert', 'file.tesc', 'file.tese', 'file.geom', 'file.frag', 'file.comp', 'file.rgen', 'file.rmiss', 'file.rchit', 'file.rahit', 'file.rint', 'file.rcall'],
     gn: ['file.gn', 'file.gni'],
     gnash: ['gnashrc', '.gnashrc', 'gnashpluginrc', '.gnashpluginrc'],
     gnuplot: ['file.gpi', '.gnuplot', 'file.gnuplot', '.gnuplot_history'],
@@ -433,7 +433,7 @@ def s:GetFilenameChecks(): dict<list<string>>
     map: ['file.map'],
     maple: ['file.mv', 'file.mpl', 'file.mws'],
     markdown: ['file.markdown', 'file.mdown', 'file.mkd', 'file.mkdn', 'file.mdwn', 'file.md'],
-    mason: ['file.mason', 'file.mhtml', 'file.comp'],
+    mason: ['file.mason', 'file.mhtml'],
     master: ['file.mas', 'file.master'],
     matlab: ['file.m'],
     maxima: ['file.demo', 'file.dmt', 'file.dm1', 'file.dm2', 'file.dm3',

src/version.c

@@ -704,6 +704,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    610,
 /**/
     609,
 /**/