Feat/strategy apy v2

[Evert0x]

TODO

• Decide op maple pool
• Add Maple & TrueFi address
• Change .env with sentry info on server
• Change deployed contracts @ docs
• immunefi

Diff with #30

• alembic merge head was executed and created another alembic version
• calc_additional_apy is on the same schedule as other interval functions and placed in the middle of the stack
• if not TVL or TVL.value == 0: possibility removed in calc_additional_apy
• remove EULER strategy
• dont expose strategy entries with 0 balance
• remove duplicate new_balance.value = value line

TODO (med term)

• Historic maple APY