Add Indexed node chain client

[arobsn]

Interface

The package must implement the following interface and throw a NotSupportedError for not supported operations:

fleet/packages/blockchain-providers/src/types/blockchainProvider.ts

Lines 127 to 189 in 02bdf05

	/**
	* Represents a blockchain provider that can interact with the blockchain.
	* @template B The type of the box query used by the provider.
	*/
	export interface IBlockchainProvider<I> {
	/**
	* Get boxes.
	*/
	getBoxes(query: BoxQuery<BoxWhere>): Promise<ChainProviderBox<I>[]>;
	/**
	* Stream boxes.
	*/
	streamBoxes(query: BoxQuery<BoxWhere>): AsyncGenerator<ChainProviderBox<I>[]>;
	/**
	* Stream unconfirmed transactions
	*/
	streamUnconfirmedTransactions(
	query: TransactionQuery<UnconfirmedTransactionWhere>
	): AsyncGenerator<ChainProviderUnconfirmedTransaction<I>[]>;
	/**
	* Get unconfirmed transactions
	*/
	getUnconfirmedTransactions(
	query: TransactionQuery<UnconfirmedTransactionWhere>
	): Promise<ChainProviderUnconfirmedTransaction<I>[]>;
	/**
	* Stream confirmed transactions
	*/
	streamConfirmedTransactions(
	query: TransactionQuery<ConfirmedTransactionWhere>
	): AsyncGenerator<ChainProviderConfirmedTransaction<I>[]>;
	/**
	* Get confirmed transactions
	*/
	getConfirmedTransactions(
	query: TransactionQuery<ConfirmedTransactionWhere>
	): Promise<ChainProviderConfirmedTransaction<I>[]>;
	/**
	* Get headers.
	*/
	getHeaders(query: HeaderQuery): Promise<BlockHeader[]>;
	/**
	* Check for transaction validity without broadcasting it to the network.
	*/
	checkTransaction(transaction: SignedTransaction): Promise<TransactionEvaluationResult>;
	/**
	* Broadcast a transaction to the network.
	*/
	submitTransaction(transaction: SignedTransaction): Promise<TransactionEvaluationResult>;
	/**
	* Evaluate a transaction and return Base16-encoded evaluation result.
	*/
	reduceTransaction(transaction: UnsignedTransaction): Promise<TransactionReductionResult>;
	}