Save marker gene expression for cell-type-consensus module

[allyhawkins]

Closes #128
Closes #125

This PR modifies the cell-type-consensus module to also export a table of logcounts for all marker genes used for validating cell types (see https://github.com/AlexsLemonade/OpenScPCA-analysis/blob/main/analyses/cell-type-consensus/references/validation-markers.tsv). I copied over the script from OpenScPCA-analysis to incorporate the new changes for saving gene expression.

For the workflow itself, I modified it to have two output files, one for consensus and one for marker genes. And then I added a new parameter for the marker gene file.

While I was here I updated the link for the consensus reference to use a tagged version again. I also had to update the consensus docker image since we are now using scuttle. I updated all the tags to v0.2.2 while I was at it.

Once all the images for OpenScPCA-analysis v0.2.2 are finished building then I'll do a test run of the workflow.

[allyhawkins]

Note that the test run succeeded and I checked the outputs looked correct in the bucket. This should be ready for review.

[jashapiro]

LGTM!