IOU Amount Precision checks missing

[zgrguric]

This will pass with xrpl.js client

{
    "TransactionType": "Payment",
    "Account": "r4ejfGBMqN9chqA9Xfka9kg5AKkPGvajuz",
    "Destination": "raHYzhu84pZxKK2NjKigLmT85D3WamiorR",
    "Amount": {
        "currency": "BAR",
        "value": "0.0000000000000000001",
        "issuer": "raHYzhu84pZxKK2NjKigLmT85D3WamiorR"
    },
    "NetworkID": 1
}

This will be correctly blocked

{
    "TransactionType": "Payment",
    "Account": "r4ejfGBMqN9chqA9Xfka9kg5AKkPGvajuz",
    "Destination": "raHYzhu84pZxKK2NjKigLmT85D3WamiorR",
    "Amount": "0.0000000000000000001",
    "NetworkID": 1
}

Also keep in mind there are DeliveredMax, and other fields to check.