GRPC: add broadcast command

[jackstar12]

It would be useful to have a rpc call to broadcast a raw transaction to the network, similar to lnds https://lightning.engineering/api-docs/api/lnd/wallet-kit/publish-transaction

[vincenzopalazzo]

Please see https://docs.corelightning.org/docs/bitcoin-backend#sendrawtransaction

[jackstar12]

Please see https://docs.corelightning.org/docs/bitcoin-backend#sendrawtransaction

Anything for gRPC?

[vincenzopalazzo]

Nop :/ sorry