Add missing docstrings in facility_port module

[sajith]

Resolves #312.

I'm unsure about what to state about get_template_context() and render_template() methods. Leaving in draft state, but open to feedback.

[coveralls]

Pull Request Test Coverage Report for Build 9724242968

Details

• 1 of 3 (33.33%) changed or added relevant lines in 1 file are covered.
• 15 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+0.01%) to 18.309%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
fabrictestbed_extensions/fablib/facility_port.py	1	3	33.33%

Files with Coverage Reduction	New Missed Lines	%
fabrictestbed_extensions/fablib/facility_port.py	15	40.22%

Totals
Change from base Build 9646708720:	0.01%
Covered Lines:	1166
Relevant Lines:	4704

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💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 9724266814

Details

• 1 of 1 (100.0%) changed or added relevant line in 1 file are covered.
• 8 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+0.01%) to 18.309%

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Files with Coverage Reduction	New Missed Lines	%
fabrictestbed_extensions/fablib/facility_port.py	8	40.22%

Totals
Change from base Build 9646708720:	0.01%
Covered Lines:	1166
Relevant Lines:	4704

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💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 9764183425

Details

• 1 of 1 (100.0%) changed or added relevant line in 1 file are covered.
• 7 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+0.01%) to 18.309%

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Files with Coverage Reduction	New Missed Lines	%
fabrictestbed_extensions/fablib/facility_port.py	7	40.22%

Totals
Change from base Build 9646708720:	0.01%
Covered Lines:	1166
Relevant Lines:	4704

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💛 - Coveralls

[kthare10]

Looks good!

[coveralls]

Pull Request Test Coverage Report for Build 9850209176

Details

• 1 of 1 (100.0%) changed or added relevant line in 1 file are covered.
• 7 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+0.01%) to 18.319%

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Files with Coverage Reduction	New Missed Lines	%
fabrictestbed_extensions/fablib/facility_port.py	7	40.22%

Totals
Change from base Build 9850155529:	0.01%
Covered Lines:	1167
Relevant Lines:	4705

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💛 - Coveralls