patch 9.0.1417: ESDL files are not recognized

Problem:    ESDL files are not recognized.
Solution:   Add a pattern for ESDL files. (Amaan Qureshi, closes #12174)

src/testdir/test_filetype.vim

@@ -190,6 +190,7 @@ let s:filename_checks = {
     \ 'epuppet': ['file.epp'],
     \ 'erlang': ['file.erl', 'file.hrl', 'file.yaws'],
     \ 'eruby': ['file.erb', 'file.rhtml'],
+    \ 'esdl': ['file.esdl'],
     \ 'esmtprc': ['anyesmtprc', 'esmtprc', 'some-esmtprc'],
     \ 'esqlc': ['file.ec', 'file.EC'],
     \ 'esterel': ['file.strl'],

src/version.c

@@ -695,6 +695,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1417,
 /**/
     1416,
 /**/