GCContent adapter

[cmdcolin]

This is a sketch for a GCContent adapter

Ref #281

Imports some utility functions from @jbrowse/plugin-wiggle, uses the sequenceAdapter/subadapter concept similar to CramAdapter, and there is a track is in config_demo.json for hg19

[codecov]

Codecov Report

Merging #1624 (e424990) into master (326b357) will decrease coverage by 0.20%.
The diff coverage is 8.53%.

@@            Coverage Diff             @@
##           master    #1624      +/-   ##
==========================================
- Coverage   59.21%   59.01%   -0.21%     
==========================================
  Files         441      444       +3     
  Lines       20274    20356      +82     
  Branches     4669     4681      +12     
==========================================
+ Hits        12006    12013       +7     
- Misses       7969     8044      +75     
  Partials      299      299              

Impacted Files	Coverage Δ
...ins/wiggle/src/LinearWiggleDisplay/models/model.ts	75.69% <ø> (ø)
.../sequence/src/GCContentAdapter/GCContentAdapter.ts	1.31% <1.31%> (ø)
...gins/sequence/src/GCContentAdapter/configSchema.ts	100.00% <100.00%> (ø)
plugins/sequence/src/GCContentAdapter/index.ts	100.00% <100.00%> (ø)
plugins/sequence/src/index.ts	100.00% <100.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 326b357...e424990. Read the comment docs.

[cmdcolin]

Looks like there is a build error related to the direct import of statsUtils...could consider more properly exporting the statsUtils another way but that is a weird error

[garrettjstevens]

Now that our plugins can be built independently, we can't import from src of other plugins. Anything you want to use from the other plugin has to be exported at the top level of that plugin.

[cmdcolin]

This should be ready basically. We could potentially automatically generate a gccontent track for the assembly to make this more accessible to users, but the adapter type works pretty fine here

[cmdcolin]

There is some note in #1630 that the region stats code may get added to base adapter so all the adapters that use stats don't have to implement it in a custom way