Highlight begin of metadata section (#94)

* Add metadata section

* Add line at the end of file

Author: DecimalTurn

syntaxes/tests/vba/metadata.bas

@@ -0,0 +1,21 @@
+' SYNTAX TEST "source.vba" "metadata"
+
+VERSION 1.0 CLASS
+BEGIN
+' <----- keyword.metadata.vba
+  MultiUse = -1  'True
+            '^^  constant.numeric.decimal
+                '^^^^^  comment.line.quote
+END
+' <--- keyword.metadata.vba
+
+ End
+'^^^ keyword.control.vba
+
+Sub test()
+
+    MsgBox "test"
+    End
+   '^^^ keyword.control.vba
+
+End Sub

syntaxes/vba.tmGrammar.yml

@@ -13,6 +13,7 @@ fileTypes:
 patterns:
   - include: "#comments"
   - include: "#keywords"
+  - include: "#metadata"
   - include: "#numbers"
   - include: "#storage"
   - include: "#strings"
@@ -57,6 +58,19 @@ repository:
     name: entity.name.function.vba
     match: (?i:\b(?:(?<=Call )|(?<=Function )|(?<=Sub ))[a-zA-Z][a-zA-Z0-9_]*\b)(?=\(\)?)
 
+  metadata:
+    name: metadata.vba
+    begin: "(?i)^\\s*(BEGIN)\\b"
+    beginCaptures:
+      '1':
+        name: "keyword.metadata.vba"     
+    end: "(?i)^\\s*(END)\\b"
+    endCaptures:
+      '0':
+        name: "keyword.metadata.vba"
+    patterns: 
+      - include: "source.vba" 
+
   numbers:
     patterns:
       - name: constant.numeric.date