Add meta-qc utils per # 87

[anngvu]

Close issue #87 (basic pass/fail grading, does not cover letter-grading, which has moved to #122).

This is somewhat inefficient and we could still benefit from a specialized validation service, but it's nevertheless an improvement over the status quo regarding re-validation needs as discussed in Slack.

Test meta_qc_dataset and meta_qc_project to see how well they work so far; I know there will be cases where these could still be better.

Also, you might prefer to use manifest_generate now that the API is stable -- should be much more ergonomic to use than the DCA UI, schematic command line, or the Swagger UI.

Some examples:

meta_qc_project("syn51471542") 
meta_qc_project("syn22392179")

[allaway]

This is great - one minor suggested change but not a blocker for merging.

Couple of thoughts:

-- Consistently get 500 error for syn30058753 - not sure if this is a problem with the API or the dataset?
-- For syn50698189, one of the validation failures is '' is too short which I don't really know what it is referring to. Is this as-is from the API?

[anngvu]

This is great - one minor suggested change but not a blocker for merging.

Couple of thoughts:

-- Consistently get 500 error for syn30058753 - not sure if this is a problem with the API or the dataset? -- For syn50698189, one of the validation failures is '' is too short which I don't really know what it is referring to. Is this as-is from the API?

@allaway

• Realized this was a template/data model issue. We can add a check that template can be found in the current model (given name changes, being removed, etc.) since that'll be a good thing to do before even sending it so schematic, and more informative.
• '' is too short is as-is from the API. I think we can try to re-interpret this as an enhancement.