Adding fa2 support
This PR adds FA2 support to Indexter. Refer to the README for the new routes. I have this deployed in dev at https://dev.indexter.dexter.exchange if you want to test it.
This PR also adds a bunch of sanity checks around casting types, additional components to the Makefile, a build process for local development and kubernetes for the NodeJS dependencies, and unit testing around the FA2 cache.
Teamwork Tickets:
Edited by Brice Aldrich