Add support for reading and writing encrypted archives with test suites

[coveralls]

Pull Request Test Coverage Report for Build 50

• 43 of 52 (82.69%) changed or added relevant lines in 5 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.5%) to 71.443%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
libarchive/adapters/archive_read.py	11	14	78.57%
libarchive/adapters/archive_write.py	15	21	71.43%
<!--	Total:	43	52	82.69%	-->

Totals
Change from base Build 47:	0.5%
Covered Lines:	708
Relevant Lines:	991

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💛 - Coveralls

[udgover]

I found the issue with Python 2.7, it's related to a call to bytes which works perfectly with Python3 but not Python2. Do I need to add version check to call the right function depending on Py2 or Py3? Do you still want to support Python2.7?

Based on your feedback, I'll commit the patch.

[udgover]

Sorry for the previous commit which only fixed python2 and not python3. Now all tests are green!

[udgover]

Did you have time to check this PR?

[udgover]

Hello,

Any news to review this PR?