Wrapper for clearsky filter combining csi and pvlib models

[martin-springer]

• Code changes are covered by tests
• Code changes have been evaluated for compatibility/integration with TrendAnalysis
• New functions added to __init__.py
• API.rst is up to date, along with other sphinx docs pages
• Example notebooks are rerun and differences in results scrutinized
• Updated changelog

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 81.25000% with 3 lines in your changes are missing coverage. Please review.

❗ No coverage uploaded for pull request base (aggregated_filters_for_trials@26bb72d). Click here to learn what that means.

Files	Patch %	Lines
versioneer.py	0.00%	2 Missing ⚠️
rdtools/analysis_chains.py	80.00%	1 Missing ⚠️

Additional details and impacted files

@@                       Coverage Diff                        @@
##             aggregated_filters_for_trials     #412   +/-   ##
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  Coverage                                 ?   71.70%           
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  Files                                    ?       13           
  Lines                                    ?     2820           
  Branches                                 ?        0           
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  Hits                                     ?     2022           
  Misses                                   ?      798           
  Partials                                 ?        0           

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