Add Inner Product Arguments Implementation

[wfnuser]

Should implement the basic inner product arguments proof. Then design the puzzles learner should solve.

[wfnuser]

The first step is to written it in python to get basic understand of it. And it will be splitted to different parts:

• split and fold draft: feat: split and fold gy001/pypcs#6
• recursion
• bullet proof

[wfnuser]

The second step is to implement the exercise in zklings.

• split and fold feat: implement the exercise for split and fold technique #12
• recursion
• bullet proof