add fee estimation to 'siac wallet'
Sample output:
Wallet status:
Encrypted, Unlocked
Confirmed Balance: 0 H
Unconfirmed Delta: +0 H
Exact: 0 H
Siafunds: 0 SF
Siafund Claims: 0 H
Estimated Fee: 150 mS / KB
Sample output:
Wallet status:
Encrypted, Unlocked
Confirmed Balance: 0 H
Unconfirmed Delta: +0 H
Exact: 0 H
Siafunds: 0 SF
Siafund Claims: 0 H
Estimated Fee: 150 mS / KB