Added support for verbatim tag

[prasad83]

Enable support to copy content that appears within verbatim tag

{% verbatim %}
Content to be copied without {{parsing}}
{% endverbatim %}

[tyler-sommer]

Thanks for this @prasad83 !

Would you be willing to write a couple of tests for this tag in parse_test.go? If not, I can take care of it but figured you might want to take care of it.

[prasad83]

@tyler-sommer - I added the test case for verbatim tag.

[tyler-sommer]

Fantastic, thanks @prasad83 ! I appreciate it. :)