Mass commons dataset seeding, tools and implementation

[MarcusJones]

• [x] User account created
• [x] Bucket created
• [x] JSON metadata validator (see Plecos)
• [x] Tooling for managing datasets (see [jawfish](https://github.com/oceanprotocol/jawfish())
  • [x] Manage a data catalog
  • [x] List and query cloud
  • [x] EC2 instance to run seeding job
  • [x] EC2 instance / AWS lambda for monitoring and verification
• [x] Sample datasets updated against OEP8