Add devel/py-antlr4-python2-runtime

[dbaio]

Summary

Add devel/py-antlr4-python2-runtime: ANother Tool for Language Recognition (python2 runtime)

ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for
reading, processing, executing, or translating structured text or binary files.
It's widely used to build languages, tools, and frameworks. From a grammar,
ANTLR generates a parser that can build and walk parse trees.

This port provides the python2 runtime.

WWW: http://www.antlr.org/

Approved by:  ???
Differential Revision:  https://reviews.freebsd.org/DXXXXX

Repocopy from devel/py-antlr4-python3-runtime.
This is needed for a new port py-azure-cli.

[antoine]

Why move the NO_ARCH line? portlint?

[dbaio]

In D18631#397388, @antoine wrote:

Why move the NO_ARCH line? portlint?

I was following porting-order, NO_ARCH is a bsd.port.mk variable.
If you want I can leave it as it is.
Thank you.