Upgrade contract code to Fork12 (Banana)

[Vui-Chee]

Use Go generated code from cdk-contracts-tooling for fork12 (banana). Due to similarities between Fork12 and Fork13 (1 parameter name change), and the fact that the cdk-contracts-tooling does not have yet the generated code for Fork13, we will use Fork12 contract code instead.

Since the Polygon team already created a separate package to manage these generated code, we can reuse instead of copying over like we did last time.

There are things to take note in the newer contract function sequenceBatchesValidium,

1. parameter name for indexL1InfoRoot is different (important since we are using Fork12 but asset management team uses Fork13)
2. changes to parameters to the function (new params expectedFinalAccInputHash and l1InfoTreeLeafCount)

The consequences of those changes mean new params must be supplied to the signing request in order to conform to assets management team API.