Add ContractGetRecordsQuery

Sources/Hedera/contract/ContractGetRecordsQuery.swift

@@ -0,0 +1,25 @@
+import Foundation
+
+public class ContractGetRecordsQuery: QueryBuilder<[TransactionRecord]> {
+    public override init(client: Client) {
+        super.init(client: client)
+
+        body.contractGetRecords = Proto_ContractGetRecordsQuery()
+    }
+
+    /// Set the contract id to get the records of.
+    @discardableResult
+    public func setContract(_ id: ContractId) -> Self {
+        body.contractGetRecords.contractID = id.toProto()
+
+        return self
+    }
+
+    override func mapResponse(_ response: Proto_Response) throws -> [TransactionRecord] {
+        guard case .contractGetRecordsResponse(let response) =  response.response else {
+            throw HederaError(message: "query response was not of type 'contractGetRecords'")
+        }
+
+        return response.records.map(TransactionRecord.init)
+    }
+}