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/markbaker/complex/composer.json

@@ -0,0 +1,40 @@
+{
+    "name": "markbaker/complex",
+    "type": "library",
+    "description": "PHP Class for working with complex numbers",
+    "keywords": ["complex", "mathematics"],
+    "homepage": "https://github.com/MarkBaker/PHPComplex",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Mark Baker",
+            "email": "mark@lange.demon.co.uk"
+        }
+    ],
+    "config": {
+        "sort-packages": true,
+        "allow-plugins": {
+            "dealerdirect/phpcodesniffer-composer-installer": true,
+            "markbaker/ukraine": true
+        }
+    },
+    "require": {
+        "php": "^7.2 || ^8.0"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^7.0 || ^8.0 || ^9.0",
+        "squizlabs/php_codesniffer": "^3.7",
+        "phpcompatibility/php-compatibility": "^9.3",
+        "dealerdirect/phpcodesniffer-composer-installer": "dev-master"
+    },
+    "autoload": {
+        "psr-4": {
+            "Complex\\": "classes/src/"
+        }
+    },
+    "scripts": {
+        "style": "phpcs --report-width=200 --standard=PSR2 --report=summary,full classes/src/ unitTests/classes/src -n",
+        "versions": "phpcs --report-width=200 --standard=PHPCompatibility --report=summary,full classes/src/ --runtime-set testVersion 7.2- -n"
+    },
+    "minimum-stability": "dev"
+}