Add getHistoryPositions and getHistoryTrades endpoints to Futures API

src/Requests/GetHistoryTradesRequestContract.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace Msr\LaravelBitunixApi\Requests;
+
+use Psr\Http\Message\ResponseInterface;
+
+interface GetHistoryTradesRequestContract
+{
+    public function getHistoryTrades(
+        ?string $symbol = null,
+        ?string $orderId = null,
+        ?string $positionId = null,
+        ?int $startTime = null,
+        ?int $endTime = null,
+        int $skip = 0,
+        int $limit = 100
+    ): ResponseInterface;
+}