Render specific confirmation screens

[bitpshr]

We should detect the following types of eth_sendTransaction calls (based on their data field) and render specific styles of confirmation screens:

• Detect contract deploy send
• Detect token send
• Detect contract function call send

Until we do this, all of these operations will still work from within a dapp since they're just eth_sendTransaction calls, but the user may not have a clear idea what's going on.

[brunobar79]

Fixed via #276