Multiple fixes

* Implemented ScriptRunner with environment expansion and cleaner
  code.
* Added ApiClient plugin (com.noccy.apiclient)
* Renamed CHANGELOG.md to VERSIONS.md
* Shuffled buildtools
* Added first unittests

plugins/com.noccy.apiclient/Api/Method.php

@@ -0,0 +1,36 @@
+<?php // "name":"Call on web APIs", "author":"Noccy"
+
+namespace SparkPlug\Com\Noccy\ApiClient\Api;
+
+use JsonSerializable;
+
+class Method implements JsonSerializable
+{
+    private array $properties = [];
+
+    private ?string $info;
+
+    public function __construct(array $method)
+    {
+        $this->properties = $method['props']??[];
+        $this->info = $method['info']??null;
+    }
+
+    public function getProperties(): array
+    {
+        return $this->properties;
+    }
+
+    public function getInfo(): ?string
+    {
+        return $this->info;
+    }
+
+    public function jsonSerialize(): mixed
+    {
+        return [
+            'info' => $this->info,
+            'props' => $this->properties,
+        ];
+    }
+}