Improved interface for agent0 and chainsync

What's Changed

• Refactors to chainsync and agent0 to make them easier to use
• New support for creating a development chain using a test fixture to support on-chain testing in CI
• New system-wide tests that verify interfacing across multiple libraries

PRs

• Adding logic for calculating trade leaderboard by @slundqui in #804
• Test cleanup by @slundqui in #805
• fix: log wallet address as string by @wakamex in #806
• Removing rate limit check and going back to using default github token by @slundqui in #808
• Chainsync cleanup by @slundqui in #807
• Removing parent directory relative imports by @slundqui in #810
• Abstracting out chain to data pipeline functions by @slundqui in #813
• Removing agent0 dependency from ethpy by @slundqui in #814
• Initial system test by @slundqui in #815
• Data updates by @slundqui in #818
• Agent0 and config refactor by @slundqui in #825
• hotfix for circular imports in agent0 lib and tons of renaming by @dpaiton in #834
• System tests by @slundqui in #837
• Dashboard hotfix by @slundqui in #839
• bump project version by @dpaiton in #838

Full Changelog: v0.4.1...v0.5.0