have separate callbacks for 3 stages of transactions

Feature Merge Request

Related Issue

closes #319 (closed)

Description of Feature

allows to react to four different tx-stages

• published (txHash) => something
• confirmation (statusOK, reciept) => doSomehting
• confirmation (statusFAILED, receipt) => doSomethingElse
• error (err) => set app on fire

Motivation and Context

this will allow us to change the ui once a tx has been submitted, e.g. when creating an assessment or to display a notification in case MM does not popup- but only shows a small '1' above it's icon

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