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/EndOfCentralDirectoryTest.php

@@ -0,0 +1,35 @@
+<?php
+
+declare(strict_types=1);
+
+namespace ZipStream\Test;
+
+use PHPUnit\Framework\TestCase;
+use ZipStream\EndOfCentralDirectory;
+
+class EndOfCentralDirectoryTest extends TestCase
+{
+    public function testSerializesCorrectly(): void
+    {
+        $this->assertSame(
+            bin2hex(EndOfCentralDirectory::generate(
+                numberOfThisDisk: 0x00,
+                numberOfTheDiskWithCentralDirectoryStart: 0x00,
+                numberOfCentralDirectoryEntriesOnThisDisk: 0x10,
+                numberOfCentralDirectoryEntries: 0x10,
+                sizeOfCentralDirectory: 0x22,
+                centralDirectoryStartOffsetOnDisk: 0x33,
+                zipFileComment: 'foo',
+            )),
+            '504b0506' . // 4 bytes; end of central dir signature 0x06054b50
+            '0000' . // 2 bytes; number of this disk
+            '0000' . // 2 bytes; number of the disk with the start of the central directory
+            '1000' . // 2 bytes; total number of entries in the central directory on this disk
+            '1000' . // 2 bytes; total number of entries in the central directory
+            '22000000' . // 4 bytes; size of the central directory
+            '33000000' . // 4 bytes; offset of start of central directory with respect to the starting disk number
+            '0300' . // 2 bytes; .ZIP file comment length
+            bin2hex('foo')
+        );
+    }
+}