dcrjson: add listtickets command

[kLkA]

related to decred/dcrwallet#1168

[chappjc]

// NewListTicketsCmd ...

[chappjc]

I think the "My" prefix is confusing. These would be clear as just Inputs and Outputs

[kLkA]

This was initially here https://github.com/decred/dcrwallet/blob/master/wallet/notifications.go#L465
@chappjc @jrick do I also have to remove it in txsummary to keep code consistent?

[jrick]

@chappjc the "My" names just mean they are inputs or outputs relevant to the wallet, it doesn't necessarily include all inputs and outputs from the transaction. If you are familiar with what wallet calls "credits" and "debits" internally, these are the same thing.

@kLkA please remove the underscores in the json keys, none of the other messages use them.

[chappjc]

gotcha

[davecgh]

I was going to approve this, as the code is correct, but decided against it, because if we don't stick with the established style standards, the code base is going to become increasingly inconsistent over time and thus deteriorate

Please define the types before they are used to be consistent with the vast majority of the dcrd code. There are certainly a few exceptions that have slipped through, but it is not the norm.

e.g.

type ListTicketsTransactionSummaryInput struct {
...
}
type ListTicketsTransactionSummaryOutput struct {
...
}
type ListTicketsTransactionSummary struct {
...
}
type ListTicketsResult struct {
...
}