refac(zk): refactor circuit polynomial builder

[chokobole]

Description

This PR refactors(mostly) and optimizes CircuitPolynomialBulider

[dongchangYoo]

LGTM

[ashjeong]

44e9625
refac(zk): change set_id to j for consistency
->
refac(zk): change set_idx to j for consistency

7bdf930
refac(zk): sort member variable in a order of usage
->
refac(zk): sort member variables in a order of usage

7bdf930
I think it should be in the order theta, gamma, beta if the order is based on usage; however, why don’t we just squash this with 6c7e174 since we over write part of this commit?
& If this is changed, I think EvaluationInput constructor should also be changed (aka use in line 267)

[chokobole]

44e9625 refac(zk): change set_id to j for consistency -> refac(zk): change set_idx to j for consistency

7bdf930 refac(zk): sort member variable in a order of usage -> refac(zk): sort member variables in a order of usage

7bdf930 I think it should be in the order theta, gamma, beta if the order is based on usage; however, why don’t we just squash this with 6c7e174 since we over write part of this commit? & If this is changed, I think EvaluationInput constructor should also be changed (aka use in line 267)

I agree with the first and second points. But For the third point, yeap, I also noticed that I should've changed EvaluationInput constructor, but I don't agree with squashing both commits since I believe both commits handle different parts.

[Insun35]

LGTM

[TomTaehoonKim]

LGTM

[ashjeong]

LGTM