chore: getChecksumAddress memoized and faster

[Nodonisko]

What is the current state of things and why does it need to change?

Mobile app and some controllers is using toChecksumAddress from ethereumjs-util package but this function is quite slow because of crypto operations happening inside. I plan to replace it with function from this package which is doing crypto operations too but it's memoized at least.

Memoization should help quite a lot because address pool is usually quite limited. I also made implementation in this package 4x faster and added few more addresses to test file.

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	@​types/​lodash.memoize@​4.1.9
	@​types/​lodash@​4.17.19

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[Mrtenz]

Nice!