[WIP] Training API

[mccorby]

Description

Affected Dependencies

List any dependencies that are required for this change.

How has this been tested?

• Describe the tests that you ran to verify your changes.
• Provide instructions so we can reproduce.
• List any relevant details for your test configuration.

Checklist

• [ ] I have followed the Contribution Guidelines and Code of Conduct
• [ ] I have commented my code following the OpenMined Styleguide
• [ ] I have labeled this PR with the relevant Type labels
• [ ] My changes are covered by tests

[codecov[bot]]

Codecov Report

Merging #271 into dev will decrease coverage by 1.06%. The diff coverage is 30.95%.

@@            Coverage Diff             @@
##              dev     #271      +/-   ##
==========================================
- Coverage   60.72%   59.66%   -1.07%     
==========================================
  Files          44       45       +1     
  Lines        1487     1537      +50     
  Branches      195      206      +11     
==========================================
+ Hits          903      917      +14     
- Misses        492      523      +31     
- Partials       92       97       +5     

Impacted Files	Coverage Δ
...rg/openmined/syft/execution/JobStatusSubscriber.kt	76.92% <ø> (ø)
.../main/java/org/openmined/syft/domain/SyftLogger.kt	7.14% <25.00%> (ø)
.../main/java/org/openmined/syft/execution/SyftJob.kt	66.26% <31.57%> (-10.66%)	:arrow_down:
...enmined/syft/networking/datamodels/ClientConfig.kt	42.85% <0.00%> (+8.57%)	:arrow_up:

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[mccorby]

Superseded by #290