refactor: decouple legend and tooltip phase 1

[markov00]

Summary

This is the first phase to clean and decouple the current code for legend and tooltip from the XYChart dependency.
In this PR I've just moved out 3 types Rotation, Datum and Position from the XYChart to the main src/utils/commons.ts and I've also moved 1 level up the scales folder

Checklist

Use strikethroughs to remove checklist items you don't feel are applicable to this PR.

• Any consumer-facing exports were added to src/index.ts (and stories only import from ../src except for test data & storybook)
• [ ] This was checked for cross-browser compatibility, including a check against IE11
• [ ] Proper documentation or storybook story was added for features that require explanation or tutorials
• Unit tests were updated or added to match the most common scenarios
• Each commit follows the convention

[monfera]

Looks good so far, I only have some naming suggestions

[codecov-io]

Codecov Report

Merging #491 into master will decrease coverage by 0.28%.
The diff coverage is 80.76%.

@@            Coverage Diff             @@
##           master     #491      +/-   ##
==========================================
- Coverage   71.78%   71.49%   -0.29%     
==========================================
  Files         208      208              
  Lines        6216     6119      -97     
  Branches     1199     1169      -30     
==========================================
- Hits         4462     4375      -87     
+ Misses       1738     1727      -11     
- Partials       16       17       +1

Impacted Files	Coverage Δ
...es/partition_chart/layout/types/viewmodel_types.ts	100% <ø> (ø)	⬆️
...types/partition_chart/layout/types/config_types.ts	100% <ø> (ø)	⬆️
.../chart_types/partition_chart/layout/types/types.ts	100% <ø> (ø)	⬆️
src/chart_types/xy_chart/tooltip/tooltip.ts	89.65% <100%> (+3.94%)	⬆️
src/state/actions/specs.ts	93.33% <100%> (-1.67%)	⬇️
src/specs/specs_parser.tsx	100% <100%> (ø)	⬆️
...pes/xy_chart/state/selectors/is_tooltip_visible.ts	88.88% <100%> (ø)	⬆️
...chart/state/selectors/get_legend_tooltip_values.ts	100% <100%> (ø)	⬆️
.../selectors/get_tooltip_values_highlighted_geoms.ts	92.42% <100%> (-1.46%)	⬇️
...rt/state/selectors/get_annotation_tooltip_state.ts	61.53% <50%> (-2.75%)	⬇️
... and 8 more

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