Implement Code Context

[dOrgJelli]

Implement the Code context:

<Proposal.Code>
{code => (
  <button onClick={() => await code.upvote(arg)}/>
)}
</Proposal.Code>

This is bound to be complex because of the asynchronous nature of the transaction calls. The ideal user experience is:

• initiate transaction
• sign
• be notified it was submitted
• know they're waiting for it to complete somehow via a spinner or something.
• know what values are going to be affected.
• easily see what the status is or if errors have occurred.
• understand what transactions are currently pending.

The above "UX wants" will inevitably bleed into the DevExp, so I'll leave the above code sample as a starting point and we'll see where it goes from there.

[dOrgJelli]

This will also cover contract view methods.

[dOrgJelli]

This is satisfied by the Entity context.