MT#62763 Set vim file type to bash for shell scripts not being detected

Several of these shell scripts are either not being correctly detected
as bash scripts, so source highlighting does not work, or are marked as
sh instead of bash.

Change-Id: I0b621b8ce7db8151c0174ed6d1bb369e4dc42280

tools/ngcp-api.inc

@@ -47,3 +47,5 @@ validateurl() {
     exit 1
   fi
 }
+
+# vim: ft=bash