### Godot version

4.2.dev 80de898d721f952dac0b102d48bb73d6b02ee1e8

### System information

OpenXR

### Issue description

The Godot 3 OpenXR plugin supported obtaining boundary/guardian information in order to obtain play space logic. While we do have a function in the `XRInterface` in Godot 4 that is supposed to retrieve this information (`get_play_area`) it is not implemented on the Godot 4 `OpenXRInterface`.

This logic needs to be ported.

### Steps to reproduce

Call `get_play_area`, be amazed by it not returning data :P

### Minimal reproduction project

Any XR project.
String required_extension = OpenXRInteractionProfileMetadata::get_singleton()->get_top_level_extension(p_toplevel_path);
	
	ERR_FAIL_COND_V_MSG(required_extension == XR_PATH_UNSUPPORTED_NAME, false, "OpenXR: Unsupported toplevel path " + p_toplevel_path);
	if (required_extension == "") {
		
		return true;
	}
	if (!is_extension_enabled(required_extension)) {
		
		print_verbose("OpenXR: Top level path " + p_toplevel_path + " requires extension " + required_extension);
		return false;
	}
	return true;
}
bool OpenXRAPI::is_interaction_profile_supported(const String &p_ip_path) {
	String required_extension = OpenXRInteractionProfileMetadata::get_singleton()->get_interaction_profile_extension(p_ip_path);
	
	ERR_FAIL_COND_V_MSG(required_extension == XR_PATH_UNSUPPORTED_NAME, false, "OpenXR: Unsupported interaction profile " + p_ip_path);
	if (required_extension == "") {
		
		return true;
	}
	if (!is_extension_enabled(required_extension)) {
		
		print_verbose("OpenXR: Interaction profile " + p_ip_path + " requires extension " + required_extension);
		return false;
	}
	return true;
}
bool OpenXRAPI::interaction_profile_supports_io_path(const String &p_ip_path, const String &p_io_path) {