* add functionality to create simplified mmr proof

* first draft of solidity contract

* have proper solidity version

* remove bool and calculate it

* updating test data and fix solidity code bugs

* do not generate extra order element

* integration in progress

* go integration work in progress

* use bit field for compact space

* integrate simplified proof with solidity code

* integration crude first pass

* remove unnecessary decoding

* adding unit test for simple mmr verification solidity code + go test updation

* fixing deployment + added new fixtures for tests

* fix ethereum tests

* have uniform name

* adding updated contract bindings

* adding spdx license identifier

* revert commitment change

* mmr gas tests

* initial commit for more simplified proof

* simplify mmr proof to merkle proof

* add test for invalid proof

Co-authored-by: Aidan Musnitzky <musnit@gmail.com>