feat: wallet selects previous checkpoint for spending

[sdbondi]

Description

• adds ContractOutput filter to UtxoSelectionCriteria
• adds output features param to send_transaction functions
• fixes input metadata mismatch when spending contract utxos
• changes dan to submit initial checkpoint for first checkpoint (todo: dan needs to keep track of checkpoints)

Motivation and Context

Allows wallet to select contract utxos when spending and allows for particular output features to be specified for the non-change output.

How Has This Been Tested?

Basic unit test.
Manually - VN posts initial and follow up checkpoint that spends previous checkpoint