PoC Smart Escrows (#5340)

* wasmedge in unittest

* add WashVM.h and cpp

* accountID comparison (vector<u8>) working

* json decode tx and ledger object with two buffers working

* wasm return a buffer working

* add a failure test case to P2P3

* host function return ledger sqn

* instruction gas and host function gas

* basics

* add scaffold

* add amendment check

* working PoC

* get test working

* fix clang-format

* prototype #2

* p2p3

* [WIP] P4

* P5

* add calculateBaseFee

* add FinishFunction preflight checks (+ tests)

* additional reserve for sfFinishFunction

* higher fees for EscrowFinish

* rename amendment to SmartEscrow

* make fee voting changes, add basic tests

* clean up

* clean up

* clean up

* more cleanup

* add subscribe tests

* add more tests

* undo formatting

* undo formatting

* remove bad comment

* more debugging statements

* fix clang-format

* fix rebase issues

* fix more rebase issues

* more rebase fixes

* add source code for wasm

* respond to comments

* add const

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Co-authored-by: Peng Wang <pwang200@gmail.com>

include/xrpl/protocol/jss.h

@@ -265,6 +265,8 @@ JSS(expected_date_UTC);       // out: any (warnings)
 JSS(expected_ledger_size);    // out: TxQ
 JSS(expiration);              // out: AccountOffers, AccountChannels,
                               //      ValidatorList, amm_info
+JSS(extension_compute);       // out: NetworkOps
+JSS(extension_size);          // out: NetworkOps
 JSS(fail_hard);               // in: Sign, Submit
 JSS(failed);                  // out: InboundLedger
 JSS(feature);                 // in: Feature