Support Ws and Ipc providers

[fala13]

Motivation

Allow to use Ws an Ipc on par with Http RPCs.
Closes #306

Solution

Straightforward adaptation of https://www.gakonst.com/ethers-rs/providers/custom.html to include Http.
Added example tests to cover the new code.

Considerations - feedback welcome

• The RPC type is heuristically determined depending on the rpc_url string content and defaults to Ipc if neither 'http' or 'ws' is part of the string. There could be some edge cases that this omits, leading to inability to connect.
• Ideally we would like to reuse same provider object like proposed in [EXP] perf(decode): approx. 100x speed improvement w/ various optimizations #310, so the cost of checking the rpc_url string content and .await when trying to connect to the RPC can be accepted.
• The name HttpOrIpcOrWs isn't very catchy but follows ethers-rs example convention. Happy to change it if better suggested.
• No tests for Ipc added as it depends on having a local node, however the handling is same as Ws.
• The visibility of HttpOrIpcOrWs and the new rpc::get_provider() could be restricted.

[Jon-Becker]

looks great! once tests pass we can merge this in :)

huge thank you for contributing ❤️

[Jon-Becker]

nit: remove

[Jon-Becker]

will get this in today :)

[Jon-Becker]

ill fix the broken test case and include in #372, so this will be part of 0.8.0

[fala13]

Hey @Jon-Becker, I'm trying to use Heimdall in prod doing decompilation and I get a lot of crashes in the - esp. the more timeout I give it - in debug there are arithmetic overflows in the vm, with arithmetic checks disabled I get vector capacity errors and so on. Are you interested in those as new issues or should I wait or 0.8 and report then? Would you like them as unit tests, or just example contract addresses? Their appearance is probabilistic, some I need multiple retries to reproduce.

I tried fixing them on my own, but I'm not familiar with this code enough (yet).

[Jon-Becker]

if they happen on nightly, please open an issue!!

you can install nightly with bifrost +nightly or bifrost -v main

[Jon-Becker]

Awesome! Looks good enough to merge, i'll fix clippy in a future commit.

[Jon-Becker]

<3