Runtime lib restructure

[ozgunozerk]

Fixes #164

Clippy and cargo warned me that BlockId and SignedBlock are unused, so I removed them. Let's keep that in mind in case some stuff breaks in the future. All tests are passing atm 🥳

You can find the details about the restructuring on the issue. Additionally, I also extracted types into type.rs

Took me longer than expected, dependencies and imports were a mess 😅. I think this structure will be much better for the future.

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[4meta5]

Hard to review closely as with any PR that moves configs between files, but I agree it's worth it for improved organization moving forward.

I think we should follow the same structure for the evm-template as well and it'd be easier to review those changes if they were included in this PR.

[ozgunozerk]

I think we should follow the same structure for the evm-template as well and it'd be easier to review those changes if they were included in this PR.

Only refactored generic one. Will refactor evm-template after @KitHat's PR's are merged.

If I refactor evm-template right now, there will be so many conflicts. As I mentioned, I think I have to wait for evm-template PR's to merge first

[KitHat]

One suspicious file, in other things LGTM!