* 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