`Session` doesn't support decoding & paging mode

[gmilos]

Session supports couple of query types that decode the data type automatically, e.g.:

swift-cassandra-client/Sources/CassandraClient/Session.swift

Lines 133 to 145 in 4c395e6

	public func query<T: Decodable>(
	_ query: String,
	parameters: [CassandraClient.Statement.Value] = [],
	options: CassandraClient.Statement.Options = .init(),
	on eventLoop: EventLoop? = .none,
	logger: Logger? = .none
	) -> EventLoopFuture<[T]> {
	self.query(query, parameters: parameters, options: options, on: eventLoop, logger: logger).flatMapThrowing { rows in
	try rows.map { row in
	try T(from: CassandraClient.RowDecoder(row: row))
	}
	}
	}

Separately, Session supports paging queries, for example:

swift-cassandra-client/Sources/CassandraClient/Session.swift

Lines 173 to 189 in 4c395e6

	public func query(
	_ query: String,
	parameters: [CassandraClient.Statement.Value] = [],
	pageSize: Int32,
	options: CassandraClient.Statement.Options = .init(),
	on eventLoop: EventLoop? = .none,
	logger: Logger? = .none
	) -> EventLoopFuture<CassandraClient.PaginatedRows> {
	do {
	let statement = try CassandraClient.Statement(query: query, parameters: parameters, options: options)
	return self.execute(statement: statement, pageSize: pageSize, on: eventLoop, logger: logger)
	} catch {
	let eventLoop = eventLoop ?? eventLoopGroup.next()
	return eventLoop.makeFailedFuture(error)
	}
	}
	}

What's missing is a query that'd do both paging & decoding.