Dataloader api

[galalen]

Description

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Affected Dependencies

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How has this been tested?

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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 #291 (a33a485) into dev (421d96e) will increase coverage by 3.33%. The diff coverage is 59.06%.

@@            Coverage Diff             @@
##              dev     #291      +/-   ##
==========================================
+ Coverage   27.50%   30.83%   +3.33%     
==========================================
  Files          47       54       +7     
  Lines        1367     1456      +89     
  Branches      225      229       +4     
==========================================
+ Hits          376      449      +73     
- Misses        948      964      +16     
  Partials       43       43              

Impacted Files	Coverage Δ
.../java/org/openmined/syft/data/loader/DataLoader.kt	0.00% <0.00%> (ø)
...rg/openmined/syft/datasource/JobLocalDataSource.kt	75.00% <ø> (ø)
...in/java/org/openmined/syft/domain/JobRepository.kt	14.63% <25.00%> (ø)
.../main/java/org/openmined/syft/execution/SyftJob.kt	19.14% <30.00%> (+3.59%)	:arrow_up:
...main/java/org/openmined/syft/execution/JobModel.kt	33.33% <33.33%> (ø)
syft/src/main/java/org/openmined/syft/Syft.kt	33.76% <50.00%> (ø)
...a/org/openmined/syft/data/loader/SyftDataLoader.kt	89.74% <89.74%> (ø)
...g/openmined/syft/data/loader/DataLoaderIterator.kt	100.00% <100.00%> (ø)
...a/org/openmined/syft/data/samplers/BatchSampler.kt	100.00% <100.00%> (ø)
.../org/openmined/syft/data/samplers/RandomSampler.kt	100.00% <100.00%> (ø)
... and 9 more

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