Propagate L2 -> L1 messages

[LHerskind]

For L2 contracts that are transmitting messages to L1, we must take the L2 messages published as part of the kernel, and include it in the calldata hash. Likewise, it needs to be included in the L2 block that are inputted into the contract to update its method of deriving calldatahashes for the kernels

Require updates to:

• Circuits
• Contracts
• Typescript

[LHerskind]

Blocked by BB using different generators for WASM and CPP. Similar expected for #348.

[LHerskind]

Can be doen without WASM and CPP parity, it is simply more ugly from my POV.