message: Resolve Add \begin{comment} syntax highlight
diff: <key>name</key>
  <string>meta.function.verbatim.latex</string>
  </dict>
  + <dict>
  + <key>begin</key>
  + <string>(?:\s*)((\\)begin)(\{)((?:C|c)omment)(\})</string>
  + <key>captures</key>
  + <dict>
  + <key>1</key>
  + <dict>
  + <key>name</key>
  + <string>support.function.be.latex</string>
  + </dict>
  + <key>2</key>
  + <dict>
  + <key>name</key>
  + <string>punctuation.definition.function.latex</string>
  + </dict>
  + <key>3</key>
  + <dict>
  + <key>name</key>
  + <string>punctuation.definition.arguments.begin.latex</string>
  + </dict>
  + <key>4</key>
  + <dict>
  + <key>name</key>
  + <string>variable.parameter.function.latex</string>
  + </dict>
  + <key>5</key>
  + <dict>
  + <key>name</key>
  + <string>punctuation.definition.arguments.end.latex</string>
  + </dict>
  + </dict>
  + <key>contentName</key>
  + <string>punctuation.definition.comment.tex</string>
  + <key>end</key>
  + <string>((\\)end)(\{)(\4)(\})</string>
  + <key>name</key>
  + <string>meta.function.verbatim.latex</string>
  + </dict>
  <dict>
  <key>captures</key>
  <dict>
  