Add support for DomainID in MPTokenIssuance transactions (#5509)

This change adds support for `DomainID` to existing transactions `MPTokenIssuanceCreate` and `MPTokenIssuanceSet`.

In #5224 `DomainID` was added as an access control mechanism for `SingleAssetVault`. The actual implementation of this feature lies in `MPToken` and `MPTokenIssuance`, hence it makes sense to enable the use of `DomainID` also in `MPTokenIssuanceCreate` and `MPTokenIssuanceSet`, following same rules as in Vault:

* `MPTokenIssuanceCreate` and `MPTokenIssuanceSet` can only set `DomainID` if flag `MPTRequireAuth` is set.
* `MPTokenIssuanceCreate` requires that `DomainID` be a non-zero, uint256 number.
* `MPTokenIssuanceSet` allows `DomainID` to be zero (or empty) in which case it will remove `DomainID` from the `MPTokenIssuance` object.

The change is amendment-gated by `SingleAssetVault`. This is a non-breaking change because `SingleAssetVault` amendment is `Supported::no`, i.e. at this moment considered a work in progress, which cannot be enabled on the network.

include/xrpl/protocol/detail/ledger_entries.macro

@@ -482,8 +482,7 @@ LEDGER_ENTRY(ltDELEGATE, 0x0083, Delegate, delegate, ({
 }))
 
 /** A ledger object representing a single asset vault.
-
-    \sa keylet::mptoken
+    \sa keylet::vault
  */
 LEDGER_ENTRY(ltVAULT, 0x0084, Vault, vault, ({
     {sfPreviousTxnID,        soeREQUIRED},

include/xrpl/protocol/detail/transactions.macro

@@ -409,6 +409,7 @@ TRANSACTION(ttMPTOKEN_ISSUANCE_CREATE, 54, MPTokenIssuanceCreate, Delegation::de
     {sfTransferFee, soeOPTIONAL},
     {sfMaximumAmount, soeOPTIONAL},
     {sfMPTokenMetadata, soeOPTIONAL},
+    {sfDomainID, soeOPTIONAL},
 }))
 
 /** This transaction type destroys a MPTokensIssuance instance */
@@ -420,6 +421,7 @@ TRANSACTION(ttMPTOKEN_ISSUANCE_DESTROY, 55, MPTokenIssuanceDestroy, Delegation::
 TRANSACTION(ttMPTOKEN_ISSUANCE_SET, 56, MPTokenIssuanceSet, Delegation::delegatable, ({
     {sfMPTokenIssuanceID, soeREQUIRED},
     {sfHolder, soeOPTIONAL},
+    {sfDomainID, soeOPTIONAL},
 }))
 
 /** This transaction type authorizes a MPToken instance */
@@ -478,7 +480,7 @@ TRANSACTION(ttVAULT_CREATE, 65, VaultCreate, Delegation::delegatable, ({
     {sfAsset, soeREQUIRED, soeMPTSupported},
     {sfAssetsMaximum, soeOPTIONAL},
     {sfMPTokenMetadata, soeOPTIONAL},
-    {sfDomainID, soeOPTIONAL}, // PermissionedDomainID
+    {sfDomainID, soeOPTIONAL},
     {sfWithdrawalPolicy, soeOPTIONAL},
     {sfData, soeOPTIONAL},
 }))
@@ -487,7 +489,7 @@ TRANSACTION(ttVAULT_CREATE, 65, VaultCreate, Delegation::delegatable, ({
 TRANSACTION(ttVAULT_SET, 66, VaultSet, Delegation::delegatable, ({
     {sfVaultID, soeREQUIRED},
     {sfAssetsMaximum, soeOPTIONAL},
-    {sfDomainID, soeOPTIONAL}, // PermissionedDomainID
+    {sfDomainID, soeOPTIONAL},
     {sfData, soeOPTIONAL},
 }))