Change Sending To Self Behavior

[apbendi]

Issue 6.8

Sending to an address owned by the existing wallet should show as two entries:

• One outgoing, that includes the fee
• One incoming, that doesn't include the fee

[wildmolasses]

If we look up transactions via the typical GET /transactions/:address then the fee is unknown. This could be addressed by the 2nd suggestion here: #56

Eyal responded to this in a few messages starting here:
https://discord.com/channels/599153230659846165/610815764311572483/737367028255424652

Interim solution is to ask for each tx's extended output.