giD v0.9.13 - Javascriptcore class templates, Android support, and more

[Element Green]

Thought I'd post an update on 
[giD](https://code.dlang.org/packages/gid) (the GObject 
Introspection binding repo for D) since the last announcement 
made here (v0.9.6) because of some interesting developments.

In addition to many bug fixes and improvements, some notable new 
features are:

Powerful class registration templates were added to the 
Javascriptcore giD binding. Essentially this makes it easy to 
register a D class with the high performance JIT Webkit 
Javascript engine to call D code from Javascript for embedding JS 
in D applications or writing D Javascript plugins. Either all 
public methods and properties of a class can be registered 
automatically or UDAs can be used to mark the desired API to 
expose (see example below).

After some improvements to the giD dynamic library loader, 
Android is now a supported platform, paving the way for cross 
platform Gtk4/Adwaita development (Linux, Mac, Windows, and now 
Android).

The awesome [dejadoc](https://codeberg.org/ddn/dejadoc) is now 
being used to generate API documentation. This makes it easy to 
have both Gtk3 and Gtk4 docs hosted in the same API reference and 
looks [amazing](https://www.kymorphia.com/gid/) too!

Fluent builders were added to all giD bindings, which importantly 
makes it possible to set construct-only properties (such as Gtk4 
`cssName`).  Some users also find this convenient for chaining 
property assignments in a single call when constructing objects.

**Example:**

```D
auto window = Window.builder.modal(true).title("A modal 
window").build;
```

**giD Javascriptcore example:**

```D
class MyDClass
{
   this(double v)
   {
     val = v;
   }

   @property double aProperty() { return val; }

   void aMethod(double someValue)
   {
     writeln("The method argument is: ", someValue);
   }

private:
   double val;
}

...

context.registerClass!(MyDClass, RegisterClassMode.Full);

auto jsCode = `
   let obj = new MyDClass(42.0);
   obj.aMethod(obj.aProperty);
`;

context.evaluate(jsCode);

...

```