feat: Add Formats and Flags to server_definitions

[godexsoft]

High Level Overview of Change

Closes #5151
Attempts to implement XRPLF/XRPL-Standards#418

This is a combination of #5702 (bulk of functionality) and #5616 (tests).

If merged:

• Closes feat: add more fields to server_definitions #5702
• Closes Additions to the server_definitions RPC response #5616

• Issue with tfBatchMask not matching the previous constant is fixed and covered by an extra test in Batch_test.cpp.
• Modernized the code where possible, removed incorrect uses of initializer_list where applicable.

Context of Change

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Refactor (non-breaking change that only restructures code)
• Performance (increase or change in throughput and/or latency)
• Tests (you added tests for code that already exists, or your new feature included in this PR)
• Documentation update
• Chore (no impact to binary, e.g. .gitignore, formatting, dropping support for older tooling)
• Release

API Impact

• Public API: New feature (new methods and/or new fields)
• Public API: Breaking change (in general, breaking changes should only impact the next api_version)
• libxrpl change (any change that may affect libxrpl or dependents of libxrpl)
• Peer protocol change (must be backward compatible or bump the peer protocol version)

[Copilot]

Pull request overview

Copilot reviewed 29 out of 29 changed files in this pull request and generated 3 comments.

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[ximinez]

All of my concerns have been addressed, though Copilot identified a couple of things.

I haven't done a deep review, so I'm just going to dismiss this approval. There are plenty of other approvals to proceed with.

[donovanhide]

This is a useful change, but the supplied definitions are incomplete. For a code generator to use this data and to be able to decode the whole ledger, the following inner object definitions need to be added (INNER_OBJECT_FORMATS would be my suggestion):

    "Memo":                  {"MemoType", "MemoData", "MemoFormat"},
	"SignerEntry":           {"Account", "SignerWeight", "WalletLocator"},
	"Signer":                {"Account", "TxnSignature", "SigningPubKey"},
	"Majority":              {"Amendment", "CloseTime"},
	"DisabledValidator":     {"PublicKey", "FirstLedgerSequence"},
	"HookParameter":         {"HookParameterName", "HookParameterValue"},
	"HookGrant":             {"HookHash", "HookAuthorize"},
	"Hook":                  {"HookGrants", "HookParameters", "HookDefinition"},
	"PriceData":             {"BaseAsset", "QuoteAsset", "AssetPrice", "Scale"},
	"AuctionSlot":           {"Account", "AuthAccounts", "DiscountedFee", "Price", "Expiration"},
	"AuthAccount":           {"Account"},
	"Credential":            {"Issuer", "CredentialType"},
	"NFToken":               {"NFTokenID", "URI"},
	"VoteEntry":             {"Account", "TradingFee", "VoteWeight"},
	"ActiveValidator":       {"PublicKey", "LedgerIndex"},
	"HookDefinition":        {"HookOn", "HookNamespace", "HookApiVersion", "CreateCode", "Fee", "HookParameters", "HookGrants"},
	"CredentialSubject":     {"Subject", "CredentialType"},
	"CredentialAttestation": {"AttestationSignerAccount", "AttestationRewardAccount"},
	"Permission":            {"PermissionValue"},
	"Book":                  {"BookDirectory", "BookNode"},
	"RawTransaction":        {"TransactionType", "Account", "Amount", "Destination", "Sequence", "SigningPubKey", "TxnSignature"},
	"BatchSigner":           {"Account", "SigningPubKey", "TxnSignature"},
	"CounterpartySignature": {"TxnSignature", "SigningPubKey"},
	"XChainClaimAttestation": {
		"XChainBridge",
		"AttestationSignerAccount",
		"PublicKey",
		"Signature",
		"OtherChainSource",
		"Amount",
		"AttestationRewardAccount",
		"WasLockingChainSend",
		"XChainClaimID",
		"Destination",
	},
	"XChainCreateAccountAttestation": {
		"XChainBridge",
		"AttestationSignerAccount",
		"PublicKey",
		"Signature",
		"OtherChainSource",
		"Amount",
		"AttestationRewardAccount",
		"WasLockingChainSend",
		"XChainAccountCreateCount",
		"Destination",
		"SignatureReward",
	},