Release of v5.1.1-alpha1

Move all banners to GitHub. Adds library phpspreadsheet to JCB. Adds import item example to demo component. Updates the Superpower class with the GetRemote class in the plugin. Ensures the super power autoloader triggers the correct repositories.

libraries/phpspreadsheet/vendor/maennchen/zipstream-php/test/PackFieldTest.php

@@ -0,0 +1,42 @@
+<?php
+
+declare(strict_types=1);
+
+namespace ZipStream\Test;
+
+use PHPUnit\Framework\TestCase;
+use RuntimeException;
+use ZipStream\PackField;
+
+class PackFieldTest extends TestCase
+{
+    public function testPacksFields(): void
+    {
+        $this->assertSame(
+            bin2hex(PackField::pack(new PackField(format: 'v', value: 0x1122))),
+            '2211',
+        );
+    }
+
+    public function testOverflow2(): void
+    {
+        $this->expectException(RuntimeException::class);
+
+        PackField::pack(new PackField(format: 'v', value: 0xFFFFF));
+    }
+
+    public function testOverflow4(): void
+    {
+        $this->expectException(RuntimeException::class);
+
+        PackField::pack(new PackField(format: 'V', value: 0xFFFFFFFFF));
+    }
+
+    public function testUnknownOperator(): void
+    {
+        $this->assertSame(
+            bin2hex(PackField::pack(new PackField(format: 'a', value: 0x1122))),
+            '34',
+        );
+    }
+}