Add WES and Discovery Search to FASP Python examples

https://github.com/ianfore/FASPclient has example python code to

1. query data
2. obtain urls via DRS
3. run a compute
It currently queries BigQuery directly and submits a pipelines directly to GCP Life Sciences pipeline.
We want to convert the script so steps 1 and 3 use the equivalent GA4GH APIs.

Creating issue here to track the following
- [x] Modify FASPScript1.py to submit jobs via WES instead of Life Sciences Pipeline
- Make BigQuery datasets searchable through Discovery Search
- [x] 1000Genomes
- [ ] COPDGene
- [ ] GECCO
- [x] Modify FASPScript1.py to use Discovery Search API to search the data
- [ ] Create scrambled/fake versions of COPDGene, GECCO
- [ ] Put DiscoverySearch datasets under authentication and authorization – stretch?