Update ListOperations

[chunkitmax]

• add back operations for attestation, preattestation and attestation_with_dal to the list of operations
• make BLSModePreattestation and BLSModeAttestation consensus operations
• exclude consensus operations from the results of ListOperations

[e-asphyx]

Why did you remove them in the first place?

[e-asphyx]

Can you explain please?

[chunkitmax]

I have not got any reply from this message I sent you 3 month ago.

My understanding is that those removed operations should be consensus operations instead of generic operations according to the source code.
`Attestation`, `AttestationWithDAL`, `BLSModeAttestation` are already under `AttestationSignRequest` which is `ConsensusSignRequest[AttestationRequestContent]`
`Preattestation` , `BLSModePreattestation` are already under `PreattestationSignRequest` which is `ConsensusSignRequest[PreattestationRequestContent]`

If the `OperationContents` is just listing all the operations, then `GenericOperationSignRequest` should not use it and instead maybe create a new enum for generic operations. 
That is the reason why there are duplicated attestation and preattestation operations on different levels in signatory config file which confuses users. If so, please revert it and advise.

But now I understand that OperationContents is really just a list of all operations after looking at the decoding path of the mempool. In order to avoid changing GenericOperationSignRequest, I would rather filter out consensus operations from the results of ListOperations.

All those changes were made for this ecadlabs/signatory#657

[chunkitmax]

Addressed by f8ffdc1