Language support: Add support for Batch files (.BAT)

[intellekta]

To add Batch Support:

In package.json add
"onLanguage:batch", under "onLanguage:ada",

In parser.ts add:
case "bat": this.setCommentFormat("::", "rem.||(", ")"); break;

sample batch:

@echo off
cls
echo single line comments
::! alert
::TODO: something
echo multi line comments
rem.||(
  * ! alert
  * TODO something
)
:end

[EdwinBetanc0urt]

Adding this change to the .bat and .cmd extension would help