Add single asset vault (XLS-65d) (#5224)

- Specification: XRPLF/XRPL-Standards#239
- Amendment: `SingleAssetVault`
- Implements a vault feature used to store a fungible asset (XRP, IOU, or MPT, but not NFT) and to receive shares in the vault (an MPT) in exchange.
- A vault can be private or public.
- A private vault can use permissioned domains, subject to the `PermissionedDomains` amendment.
- Shares can be exchanged back into asset with `VaultWithdraw`.
- Permissions on the asset in the vault are transitively applied on shares in the vault.
- Issuer of the asset in the vault can clawback with `VaultClawback`.
- Extended `MPTokenIssuance` with `DomainID`, used by the permissioned domain on the vault shares.

Co-authored-by: John Freeman <jfreeman08@gmail.com>

src/test/rpc/Transaction_test.cpp

@@ -355,8 +355,7 @@ class Transaction_test : public beast::unit_test::suite
         }
 
         auto const tx = env.jt(noop(alice), seq(env.seq(alice))).stx;
-        auto const ctid =
-            *RPC::encodeCTID(endLegSeq, tx->getSeqProxy().value(), netID);
+        auto const ctid = *RPC::encodeCTID(endLegSeq, tx->getSeqValue(), netID);
         for (int deltaEndSeq = 0; deltaEndSeq < 2; ++deltaEndSeq)
         {
             auto const result = env.rpc(