* add tests

* remove unused crate

* remove serai_abi

Remove potentially vartime (due to cache side-channel attacks) table access in dalek-ff-group and minimal-ed448

Mainly corrects for https://github.com/alloy-rs/alloy/issues/1510 yet also
corrects a missing machete ignore.

Should fix the recent CI failures re: Ethereum as well.

* add specific network/coin/balance types

* misc fixes

* fix clippy

* misc fixes

* fix pr comments

* Make halting for external networks

* fix encode/decode

monero-wallet ships an Eventuality, yet it's across the entire transaction. It
can't prove a single output's state with a traditional payment proof. By adding
this new object, another library can obtain the ephemeral randomness used and
do any/every proof they want regarding a transaction's outputs.

Necessary for https://github.com/serai-dex/serai/issues/599.

Expands the NotEnoughFunds error and enables fetching the entire unsigned
transaction, not just the outputs it'll have.

This reduces the ability to fingerprint from any observer of the blockchain to
just one of the two recipients.

What it tests no longer applies since tweak_keys now introduces an unspendable
script path.

This is more likely to be interoperable in the long term.

Makes scanning synchronous and only error upon a malicious node/unplanned for
hard fork.

* Monero v0.18.3.4

* Correct `check_weight_and_fee` call

* Restore empty test files so CI isn't borked

Removes a dated proc-macro-crate patch.

Indirects it via a minimal wrapper which can be trivially patched.

We can't adopt it due to some issue with building the runtime, but these are
good to have.

* move economic security into it's own pallet

* fix deny

* Update Cargo.toml, .github for the new crates

* Remove unused import

---------

Co-authored-by: Luke Parker <lukeparker5132@gmail.com>