Espresso-caller

espresso-caller now doesn't depend on wftools package. Also disabled TileDB file locking in Joint Discovery workflow.

This package was renamed to `espresso-caller` which contains the `espresso` command line tool, documentation and workflow files (in WDL format).

All workflows import local WDL files, instead of telling Cromwell to download them from the Internet, that are zipped and submitted to Cromwell as dependency. The zip file is written in destination directory.

Check run dates if they are formatted in ISO8601 format.

Set required number of CPUs for tasks:

| Task |CPUs |
| ------------------------------- | ----- |
| PairedFastQsToUnmappedBAM | 8 |
| MergeBamAlignment | 4 |
| SortAndFixTags | 4 |
| MarkDuplicates | 16 |
| BaseRecalibrator | 4 |
| ApplyBQSR | 4 |
| GatherBamFiles | 4 |
| CramToBamTask | 4 |
| HaplotypeCaller | 4 |
| MergeGVCFs | 4 |

Initial features

- Check input, resources, and intervals files.
- Generate inputs JSON files for 'haplotype-calling' and 'joint-discovery' workflows.
- Submit JSON and WDL files to Cromwell through its API.
- Collect output files from Cromwell execution directory copying them to result directory.
- Combine previous raw gVCF files with new data to execute 'joint-discovery' workflow.
- Validate and output ready-analysis alignment data in CRAM format.