Decouple state access from PlatformView

[devnatan]

This is needed to allow custom components to access Platform-designed states.
A StateAccess interface was created, both AbstractComponent and PlatformView will implement it.

Before states was created with internal API methods, accessing StateRegistry, casting root to PlatformView (that couldn't work sometimes), a completely mess

Now states can be used like in a View and can be integrated with State-Components like Pagination or regular components like ItemComponent.

@Data
class MyCustomComponent extends AbstractComponent {

    // Components inherit states from context that inherits from root, initialState should work as well.
    private final State<String> initialText = initialState();

    @Override
    public void render(@NotNull IFRenderContext render) {
        // do something with initial state
    }

}

Also needed to identify State accessors in Inventory Framework IntelliJ Tooling Plugin