Agent refactor

[slundqui]

This PR is the 3rd PR in a series of PRs for agent0 to support multiple pools.

The agent classes in agent0 is reworked in this PR. Here, the main changes include init_agent being a function of the chain as opposed to the pool. Additionally, many functions now take a pool argument to specify what pool the agent is making a trade on. There are helper functions for setting an active pool to avoid passing this argument in various functions, by calling it either in init_agent, or by calling agent.set_active(pool=...).

Additionally, the policy is now untied from the agent, such that an agent can hot-swap policies on the fly by calling the agent.set_active(policy=...) function.

• init_agent is now a function of a LocalChain or Chain object.
  • This function now takes an optional pool argument for setting an initial active pool.
• Many functions now require an active pool to be set, or an explicit pool to be passed in as an argument.
• PolicyAgent has been deprecated in favor of using LocalAccount.
• Moving many logging and bookkeeping configs from Hyperdrive and LocalHyperdrive to Chain and LocalChain respectively.
• No longer keeping track of wallet deltas, we get the wallet wrt a pool via get_wallet().
• Adding helper functions for get_long(), get_short(), get_lp(), and get_withdrawal_shares().
• LocalHyperdrive now has a flag for deploying on constructor, or attach to existing. This is necessary for the forking workflow.
• Added tests for unit and system fuzzing.

[codecov]

Codecov Report

Attention: Patch coverage is 90.13378% with 59 lines in your changes are missing coverage. Please review.

Project coverage is 81.35%. Comparing base (88157f3) to head (035c685).

❗ Current head 035c685 differs from pull request most recent head b4c4b9e

Please upload reports for the commit b4c4b9e to get more accurate results.

Files	Patch %	Lines
...e/hyperdrive/interactive/local_hyperdrive_agent.py	83.45%	23 Missing ⚠️
...t0/core/hyperdrive/interactive/hyperdrive_agent.py	85.18%	20 Missing ⚠️
...yperdrive/interactive/exec/execute_agent_trades.py	93.22%	4 Missing ⚠️
.../agent0/core/hyperdrive/interactive/local_chain.py	96.36%	4 Missing ⚠️
...t0/core/hyperdrive/interactive/local_hyperdrive.py	80.95%	4 Missing ⚠️
...gent0/core/hyperdrive/crash_report/crash_report.py	80.00%	2 Missing ⚠️
...rc/agent0/hyperfuzz/unit_fuzz/fuzz_profit_check.py	50.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1487      +/-   ##
==========================================
- Coverage   83.89%   81.35%   -2.54%     
==========================================
  Files          88       97       +9     
  Lines        5674     6762    +1088     
==========================================
+ Hits         4760     5501     +741     
- Misses        914     1261     +347     

Flag	Coverage Δ
unittests	81.35% <90.13%> (-2.54%)	⬇️

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