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/Catalog.php

@@ -0,0 +1,84 @@
+<?php // "name":"Call on web APIs", "author":"Noccy"
+
+namespace SparkPlug\Com\Noccy\ApiClient\Api;
+
+use JsonSerializable;
+
+class Catalog implements JsonSerializable
+{
+    private array $properties = [];
+
+    private array $methods = [];
+
+    private ?string $name;
+
+    private ?string $info;
+
+    public function __construct(array $catalog=[])
+    {
+        $catalog = $catalog['catalog']??[];
+        $this->name = $catalog['name']??null;
+        $this->info = $catalog['info']??null;
+        foreach ($catalog['props']??[] as $k=>$v) {
+            $this->properties[$k] = $v;
+        }
+        foreach ($catalog['methods']??[] as $k=>$v) {
+            $this->methods[$k] = new Method($v);
+        }
+    }
+
+    public static function createFromFile(string $filename): Catalog
+    {
+        $json = file_get_contents($filename);
+        $catalog = json_decode($json, true);
+        $catalog['name'] = basename($filename, ".json");
+        return new Catalog($catalog);
+    }
+
+    public function getName(): ?string
+    {
+        return $this->name;
+    }
+
+    public function getInfo(): ?string
+    {
+        return $this->info;
+    }
+
+    public function getProperties(): array
+    {
+        return $this->properties;
+    }
+
+    public function applyProperties(array $props)
+    {
+        $this->properties = array_merge($this->properties, $props);
+    }
+
+    public function addMethod(string $name, Method $method)
+    {
+        $this->methods[$name] = $method;
+    }
+
+    public function getMethod(string $method): ?Method
+    {
+        return $this->methods[$method]??null;
+    }
+
+    public function getMethods(): array
+    {
+        return $this->methods;
+    }
+
+    public function jsonSerialize(): mixed
+    {
+        return [
+            'catalog' => [
+                'name' => $this->name,
+                'info' => $this->info,
+                'props' => $this->properties,
+                'methods' => $this->methods,
+            ]
+        ];
+    }
+}

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,
+        ];
+    }
+}

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

@@ -0,0 +1,13 @@
+<?php // "name":"Call on web APIs", "author":"Noccy"
+
+namespace SparkPlug\Com\Noccy\ApiClient\Api;
+
+class Profile
+{
+    private array $properties = [];
+
+    public function getProperties(): array
+    {
+        return $this->properties;
+    }
+}