patch 8.2.4767: openscad files are not recognized

Problem:    Openscad files are not recognized.
Solution:   Add a filetype pattern. (Niklas Adam, closes #10199)
diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
index 1bc94b5..f832e4e 100644
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -384,6 +384,7 @@
     \ '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'],
diff --git a/src/version.c b/src/version.c
index c3aad48..febf286 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4767,
+/**/
     4766,
 /**/
     4765,