Verify if transaction exists before validation

[ghost]

Is your feature request related to a problem?

Currently, the welcome node doesn't verify if a transaction exists before to send the validation requests.
Even if the validation nodes get the errors where the tx already exists, to avoid wasteful resources, we can prevent upfront the tx validation.

Describe the solution you'd like

We can add a verification in the API when we receive a transaction to submit to the network for validation to check if the transaction exists.
This will imply to request from the storage node if the transaction exists.
We can use the GetTransactionSummary P2P message to check if the transaction exists or not, returning 'NotFoundin that case.

Additional context

No response

[ghost]

Hey team! Please add your planning poker estimate with ZenHub @apoorv-2204 @imnik11 @Neylix @prix-uniris

[ghost]

Closed by #536