End to end tests for example workflows (as monolithic script)

[cisaacstern]

Closes #5

[cisaacstern]

Goal by end of day: finish this with map output.

[cisaacstern]

Closes #4 Closes #13

[cisaacstern]

remaining todo:

• [ ] serialize output of final stage of sequential script (add return_postvalidator, and spec field, e.g. "results_root", for this)
• [ ] ...

[cisaacstern]

This works, horray! 🎉

remaining todo:

• [ ] serialize output of final stage of sequential script (add return_postvalidator, and spec field, e.g. "results_root", for this)

In the end, I punted on this for now by just printing the html string from the script to stdout, and >'ing that text to file.

A working ecomap can be generated roughly as follows (mostly notes to self, more detailed docs to follow):

• compile a script with mocked I/O:

  $ ecoscope-workflows compile \
  --spec examples/compilation-specs/time-density.yaml \
  --template script-sequential.jinja2 --outpath $SCRIPT_OUTPATH \
  --testing --mock-tasks get_subjectgroup_observations

• copy the params in the time density e2e test to a local file
• run the workflow and write its output to file:

   $ python3 -W ignore $SCRIPT_OUTPATH \
   --config-file ${PARAMS_YAML_PATH} \
   > map.html

(This is the same thing as the e2e test added here does.)

Closes #18