patch 9.0.1368: Bass files are not recognized

Problem:    Bass files are not recognized.
Solution:   Add patterns for Bass files. (Amaan Qureshi, closes #12088)

src/testdir/test_filetype.vim

@@ -78,6 +78,7 @@ let s:filename_checks = {
     \ 'awk': ['file.awk', 'file.gawk'],
     \ 'b': ['file.mch', 'file.ref', 'file.imp'],
     \ 'basic': ['file.bas', 'file.bi', 'file.bm'],
+    \ 'bass': ['file.bass'],
     \ 'bc': ['file.bc'],
     \ 'bdf': ['file.bdf'],
     \ 'beancount': ['file.beancount'],

src/version.c

@@ -695,6 +695,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1368,
 /**/
     1367,
 /**/