Introduce MPT support (XLS-33d): (#5143)

Amendment:
- MPTokensV1

New Transactions:
- MPTokenIssuanceCreate
- MPTokenIssuanceDestroy
- MPTokenIssuanceSet
- MPTokenAuthorize

Modified Transactions:
- Payment
- Clawback

New Objects:
- MPTokenIssuance
- MPToken

API updates:
- ledger_entry
- account_objects
- ledger_data

Other:
- Add += and -= operators to ValueProxy

Read full spec: https://github.com/XRPLF/XRPL-Standards/tree/master/XLS-0033d-multi-purpose-tokens

---------
Co-authored-by: Shawn Xie <shawnxie920@gmail.com>
Co-authored-by: Howard Hinnant <howard.hinnant@gmail.com>
Co-authored-by: Ed Hennis <ed@ripple.com>
Co-authored-by: John Freeman <jfreeman08@gmail.com>

include/xrpl/protocol/TER.h

@@ -143,6 +143,8 @@ enum TEMcodes : TERUnderlyingType {
 
     temARRAY_EMPTY,
     temARRAY_TOO_LARGE,
+
+    temBAD_TRANSFER_FEE,
 };
 
 //------------------------------------------------------------------------------
@@ -357,6 +359,7 @@ enum TECcodes : TERUnderlyingType {
     tecTOKEN_PAIR_NOT_FOUND = 194,
     tecARRAY_EMPTY = 195,
     tecARRAY_TOO_LARGE = 196,
+    tecLOCKED = 197,
     tecLAST_POSSIBLE_ENTRY = 255,
 };