* Fix lint rules for tests

The lint configuration for tests was wrong (the file glob had the wrong
file extension), so none of the test lint rules or globals were being
set correctly. This has been fixed, and all rule violations have been
fixed.

There were a number of workarounds used in the tests for the globals
`expect` and `it` not being recognized by the linter. These workarounds
have now been removed as well, since globals are now correctly set.

* Preserve restricted matchers unrelated to snapshots

A fork of `typedoc` was being used because it included an enhancement
to how destructured parameters are interpreted [1]. This enhancement
has since been merged and published as v0.22.5 [2], so we don't need to
use the fork anymore.

[1]: TypeStrong/typedoc#1704
[2]: https://github.com/TypeStrong/typedoc/releases/tag/v0.22.5

…pgrading `ethereumjs-util` to latest (now called `@ethereumjs/util`) (#260)

* upgrade ethereumjs-util to latest (@ethereumjs/util) and adapt accordingly

* fix types

* wip

* fix something

* swap out TextEncoder for Buffer.from

* fix number hashing

* fix more tests

* add comments

* all tests passing

* cutting out ethereumjs-abi

* add jsdocs

* fully remove old secp256k1 from dependency tree via ethereum-cryptography 0.1.3"

* progress?

* idk

* tests passing

* move ethereumjs-abi methods to their own file

* switch out toBuffers for typed specific buffer converts

* add tests for ethereumjs-abi-util functions

* lower test threshhold

* lint

* fix tests

* 5.0.0

* update changelog

Co-authored-by: github-actions <github-actions@github.com>
Co-authored-by: Alex <adonesky@gmail.com>