CLN: Refactor BaseDataView classes to allow for easier extension

[flongford]

Description

Refactors BaseDataView classes so that extension of chaco plot objects is easier

Related Issues

Closes #353

Summary

The main changes are

• Pyface plot updater components moved onto BaseDataView class, with option to extend scheduled updates in update_data_view method
• BasePlot class moved to its own module to become a generic 2D plot - subclasses can implement the optional customize_plot method to customize Chaco BaseXYPlot components and customize_plot_data method to provide new chaco ArrayPlotData components.
• Separation introduced between the Chaco Component object being displayed in the BasePlot TraitsUI view and the main plot that is hooked up to the MCO data. It is now possible to customize both, so that multiple chaco objects can be displayed in the same BasePlot view
• Plot class renamed as ScatterPlot with combined color options
• Removed no longer relevant IBasePlot class

Future Work

• BaseDataView could be turned into an ABCHasStrictTraits class
• It would be useful to include information about variable types in the MCORuntimeEvents, so that the data views components could be formatted accordingly.
• ~Some further refactoring could take place to separate all the BDSS framework functionality from the plotting backend (i.e Chaco).~

Changes

• Refactoring to BaseDataView classes to provide easier framework for extension

[codecov[bot]]

Codecov Report

Merging #416 into master will decrease coverage by 0.00%. The diff coverage is 96.98%.

@@            Coverage Diff             @@
##           master     #416      +/-   ##
==========================================
- Coverage   96.91%   96.91%   -0.01%     
==========================================
  Files          52       51       -1     
  Lines        2756     2751       -5     
  Branches      345      347       +2     
==========================================
- Hits         2671     2666       -5     
- Misses         49       50       +1     
+ Partials       36       35       -1     

Impacted Files	Coverage Δ
force_wfmanager/ui/review/curve_scatter_plot.py	96.15% <91.66%> (-3.85%)	:arrow_down:
force_wfmanager/ui/review/scatter_plot.py	95.77% <95.77%> (ø)
force_wfmanager/ui/review/base_data_view.py	97.95% <95.83%> (-2.05%)	:arrow_down:
force_wfmanager/ui/review/base_plot.py	98.01% <98.01%> (ø)
force_wfmanager/ui/__init__.py	100.00% <100.00%> (ø)
force_wfmanager/ui/review/data_view_pane.py	100.00% <100.00%> (ø)
force_wfmanager/version.py

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