patch 8.2.4767: openscad files are not recognized

Problem:    Openscad files are not recognized.
Solution:   Add a filetype pattern. (Niklas Adam, closes #10199)

runtime/filetype.vim

@@ -1275,6 +1275,9 @@ au BufNewFile,BufRead *.or			setf openroad
 " OPL
 au BufNewFile,BufRead *.[Oo][Pp][Ll]		setf opl
 
+" OpenSCAD
+au BufNewFile,BufRead *.scad		setf openscad		
+
 " Oracle config file
 au BufNewFile,BufRead *.ora			setf ora
 

src/testdir/test_filetype.vim

@@ -384,6 +384,7 @@ let s:filename_checks = {
     \ 'omnimark': ['file.xom', 'file.xin'],
     \ 'opam': ['opam', 'file.opam', 'file.opam.template'],
     \ 'openroad': ['file.or'],
+    \ 'openscad': ['file.scad'],
     \ 'ora': ['file.ora'],
     \ 'org': ['file.org', 'file.org_archive'],
     \ 'pamconf': ['/etc/pam.conf', '/etc/pam.d/file', 'any/etc/pam.conf', 'any/etc/pam.d/file'],

src/version.c

@@ -746,6 +746,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    4767,
 /**/
     4766,
 /**/