bug: Unable to commit accounts bigger than max transaction size

[GabrielePicco]

Description

Currently, if an account that needs to be committed is bigger than the max tx size (1232 bytes), the transaction complete successfully, but the commitment we never happen.

Proposed solution

We should support commitment trough multi-tx or bundles. This includes changing the delegation program to accept a state diff commitment in chunks trough a parallel buffer.

[thlorenz]

This has been improved by #366 by using two approaches:

• large accounts are committed via buffers, however we are still limited by the delegation program since it is not able to increase account size to what is needed if we commit super large buffers
• when a bundle includes lots of accounts then we use lookup tables to keep the transaction size small