* add SendTransactionWithSignature to Transactor
* add comment to SendTransactionWithSignature
* add SendTransactionWithSignature to StatusBackend
* add SendTransactionWithSignature to lib
* add SendTransactionWithSignature to mobile pkg
* increment nonce if needed
* add TestSendTransactionWithSignature_IncrementingNonce
* add NoError assertion
* validate tx args
* debug CI adding `env`
* CI debug
* remove debug
* return error if tx nonce is not the expected one
* fix lint warning
Remove `PendingSignRequests` queue from the sign module.
This closes#1027 by removing the pending sign requests queue dependency from the SendTransaction, SignMessage and Recover.