Introducing new MInt hooks to BYTES, LIST, and MINT modules

[Robertorosmaninho]

This PR intends to add these new hooks described below to make it possible to translate our KEVM's wordStack to use MInt instead of Int to get a better performance from it.

The new hooks proposed by this PR are:

1.  syntax {Width} MInt{Width} ::=MInt{Width} "^MInt" MInt{Width}
2.  syntax {Width} Bytes ::= MInt2Bytes(MInt{Width})
3.  syntax {Width} MInt{Width} ::= Bytes2MInt(Bytes)
4.  syntax {Width} MInt{Width} ::= lengthBytes(Bytes)
5.  syntax {Width} Bytes ::= padRightBytes(Bytes, length: MInt{Width}, value: MInt{Width})
6.  syntax {Width} Bytes ::= padLeftBytes(Bytes, length: MInt{Width}, value: MInt{Width})
7.  syntax {Width} Bytes ::= replaceAtBytes(dest: Bytes, index: MInt{Width}, src: Bytes)
8.  syntax {Width} Bytes ::= substrBytes(Bytes, startIndex: MInt{Width}, endIndex: MInt{Width})
9.  syntax {Width} MInt{Width} ::= Bytes "[" MInt{Width} "]"
10. syntax {Width} Bytes ::= Bytes "[" index: MInt{Width} "<-" value: MInt{Width} "]"
11. syntax {Width} MInt{Width} ::= size(List)
12. syntax {Width} List ::= List "[" index: MInt{Width} "<-" value: KItem "]"
13. syntax {Width} KItem ::= List "[" MInt{Width} "]"

Most of these hooks have an initial implementation for 64 and 256-bit integers, the necessary width for KEVM, but it's simple to add other bit widths as needed in the future!

[theo25]

I left a couple of comments but otherwise looks good to me. There are some CI checks failing though so I won't approve until they pass.

[theo25]

you did not mention the limitation of this working only for 64 and 256 bitwidths. Is it not limited to those?

[Robertorosmaninho]

In this case, only 64-bit. I've updated the List module to contain the limitations for all new hooks.

[nishantjr]

Note that this is a partial function, not defined for sizes greater than 2^width.

[Robertorosmaninho]

I've added a comment about this!

[dwightguth]

Lgtm