Balances Asset display idea

[wmbutler]

This might be pretty complicated, but it would really be great to see the

• [ ] market value per share in the chosen currency on the balances screen
• [ ] green/red based upon whether it's up or down in the past 24 hours
• [ ] Numbers aligned to the decimal regardless of the length of the symbol

[svk31]

This issue was moved to bitshares/bitshares-ui#67