Add pure-python-adb

[jan-janssen]

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[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipes/pure-python-adb) and found it was in an excellent condition.

[jan-janssen]

I opened a pull request upstream to include the license by default Swind/pure-python-adb#85

[jan-janssen]

@conda-forge/staged-recipes, ready for review