Remove all Yul references in EVM placeholder base

[hgedia]

Changes under should not be merged to master.

This pull request removes all yul asm and re-write sections in pure solidity. It also removes asm code which we no
longer refer. The contents of this branch will be used to transpile to cairo using warp.

There are some outstanding functions which need to be written in cairo field.sol as the current implementations are
solidity hacks and might have a better implemention/library in cairo.

Due to re-writing in solidity , i am experiencing errors on deployment of the contracts due to contract size limitations/estimations going out of bounds. Thus no testing was possible in this step.

[ETatuzova]

If we work with solidity code it's better to do simple math opernation unchecked{}. It decreases gas consumption.
Is it important for starKnet?

I think blob-parsing function is good second step in transpiling this to starknet.
Fist one -- simple math operations

[ETatuzova]

We definitely need something like expmod_static and inversed_static functions in this branch. We cannot run verifier without them. We need to think, what is the best way to do it using pure solidity.

[ETatuzova]

Need to be tested. Good third step.

[ETatuzova]

We can create a small test for Merkle trees and try to transpile it to CIAIRO.
It's a good small task, that can be done in a rather short time.

[ETatuzova]

Good point for another small test.

[ETatuzova]

Need to be tested