Create mixin for shared code between LinearWiggleDisplay and MultiWiggleLinearDisplay

[cmdcolin]

A fairy large set of code is duplicated that can be shared

It also creates a "Score" sub-menu on the trackMenu of both displays since the track menu was getting pretty lengthy

[codecov]

Codecov Report

Merging #3743 (9017be8) into main (de5ada8) will increase coverage by 0.04%.
The diff coverage is 100.00%.

❗ Current head 9017be8 differs from pull request most recent head 6548d71. Consider uploading reports for the commit 6548d71 to get more accurate results

@@            Coverage Diff             @@
##             main    #3743      +/-   ##
==========================================
+ Coverage   64.35%   64.39%   +0.04%     
==========================================
  Files         976      976              
  Lines       29868    29594     -274     
  Branches     7173     7094      -79     
==========================================
- Hits        19221    19057     -164     
+ Misses      10478    10372     -106     
+ Partials      169      165       -4     

Impacted Files	Coverage Δ
...gle/src/LinearWiggleDisplay/models/configSchema.ts	100.00% <ø> (+16.66%)	⬆️
...rc/MultiLinearWiggleDisplay/models/configSchema.ts	87.50% <ø> (ø)
plugins/wiggle/src/shared/YScaleBar.tsx	87.50% <ø> (ø)
...ns/wiggle/src/LinearWiggleDisplay/models/model.tsx	86.48% <100.00%> (+14.78%)	⬆️
...ggle/src/MultiLinearWiggleDisplay/models/model.tsx	76.22% <100.00%> (+10.75%)	⬆️

... and 1 file with indirect coverage changes

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