Draft: Feature 6232
[+] Added constructors for items included in a transaction, and the ability to add subsequent items for a transaction:
- TxIn
- TxInCond
- TxOut
- TxOutExt
- TxOutCondSubtypeSrvPay
- TxOutCondSubtypeSrvStakeLock
- TxOutCondSubtypeSrvStakePosDelegate
- TxOutCondSubtypeSrvXchange
- TxToken
- TxReceipt.