Mainnet initial release

This is the release of the subgraph that went with mainnet launch on December 17th. There were minor updates between December 17th and the date of this release, January 14th. They should be considered the same.

The subgraph can still have breaking changes without warning, hence why we have not released v1.0.0. When we are comfortable with the schema, we will release v1.0.0, and then any schema changes will be deprecated, and maintained through the public process that we create.