depr: deprecate GazeDataFrame in favor of Gaze

[dkrako]

⚠️ Deprecation

DeprecationWarning: GazeDataFrame has been renamed to Gaze in v0.22.0 and will be removed in v0.27.0.

Description

Renames GazeDataFrame to the shorter Gaze. Implements GazeDataFrame as deprecated alias.

The following warnings are printed on instantiation and subclassing:

DeprecationWarning: GazeDataFrame has been renamed to Gaze in v0.22.0 and will be removed in v0.27.0.

Implemented changes

• rename GazeDataFrame to Gaze
• implement helper metaclass for deprecating old aliases
• implement GazeDataFrame as deprecated class alias

How Has This Been Tested?

• Tested instantiation warnings
• Tested subclassing warnings

Context

related issues:

• rename GazeDataFrame to Gaze and EventDataFrame to Events #921

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules
• I have checked my code and corrected any misspellings

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (232c552) to head (c57dbe2).

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #1119   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           87        89    +2     
  Lines         3818      3869   +51     
  Branches       679       683    +4     
=========================================
+ Hits          3818      3869   +51     

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[SiQube]

please fix merge conflicts -- will check asap afterwards