Add classes to handle W3_RPC

[Tritium-VLK]

Use dRPC right now as it's super easy, but this creates an interface that is easy to change in 1 place.
See:
BalancerMaxis/bal_addresses#383

For a test of these classes, I don't think bal_addresses can actually use them due to the dependancy conflict, so maybe this belongs there?

[Tritium-VLK]

Fraxtal is missing from dRPC. Challenging them to see how such a thing is dealt with.

[Tritium-VLK]

tagged: https://github.com/BalancerMaxis/bal_tools/releases/tag/v0.1.2alpha1
bal_addresses tag to use it: https://github.com/BalancerMaxis/bal_addresses/releases/tag/0.9.9alpha1
test pr using tag: BalancerMaxis/protocol_fee_allocator#239
test action run: https://github.com/BalancerMaxis/protocol_fee_allocator/actions/runs/10115157857/job/27975300430

[Tritium-VLK]

Next step is to approve/release bal_tools. Then deal with questions about where the canonical list pools to check permissions lives on in the bal_addresses pr and merge/release that. Then release new releases, update the protocol_feel_allocator.

[jalbrekt85]

i modified Web3RpcByChain to only init a chains respective w3 instance when referenced for the first time instead of initializing all chains at the start. still maintains the same interface/usage

[jalbrekt85]

nice, simple to use class for web3 instances across all chains. added some very basic tests. lgtm

[jalbrekt85]

i also added support for dot syntax, so a chain's web3 instance can be referenced like:

 Web3RpcByChain().mainnet
 # or
 Web3RpcByChain()["mainnet"]

since this class can basically be used across the board, i think making it more flexible is worth it

[gosuto-inzasheru]

new test is not being run:

collected 94 items

tests/test_drpc.py ss                                                    [  2%]
tests/test_pools_gauges.py ..ss.s.s.ss.s.s.ss.s.s.ss.s.s.ss...s.ss.s.s.s [ 50%]
s.s.s.ss.s.s.ss.s.                                                       [ 69%]
tests/test_safe_tx_builder.py .                                          [ 70%]
tests/test_subgraph.py s.s.s.s.s.s.s.s.s......                           [ 94%]
tests/mock/test_mock_subgraph.py .....                                   [100%]

================== 49 passed, 45 skipped in 142.[59](https://github.com/BalancerMaxis/bal_tools/actions/runs/10119623674/job/27988323246?pr=27#step:6:60)s (0:02:22) ==================

[jalbrekt85]

new test is not being run:

collected 94 items

tests/test_drpc.py ss                                                    [  2%]
tests/test_pools_gauges.py ..ss.s.s.ss.s.s.ss.s.s.ss.s.s.ss...s.ss.s.s.s [ 50%]
s.s.s.ss.s.s.ss.s.                                                       [ 69%]
tests/test_safe_tx_builder.py .                                          [ 70%]
tests/test_subgraph.py s.s.s.s.s.s.s.s.s......                           [ 94%]
tests/mock/test_mock_subgraph.py .....                                   [100%]

================== 49 passed, 45 skipped in 142.[59](https://github.com/BalancerMaxis/bal_tools/actions/runs/10119623674/job/27988323246?pr=27#step:6:60)s (0:02:22) ==================

fixed in 0f40f08

[Tritium-VLK]

@jalbrekt85 @gosuto-inzasheru thanks for the help. Will merge this and release a new version.