### 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.
ERR_FAIL_NULL_V(supported_view_configuration_types, false);
	for (uint32_t i = 0; i < num_view_configuration_types; i++) {
		if (supported_view_configuration_types[i] == p_configuration_type) {
			return true;
		}
	}
	return false;
}
bool OpenXRAPI::load_supported_view_configuration_views(XrViewConfigurationType p_configuration_type) {
	
	
	if (!is_view_configuration_supported(p_configuration_type)) {
		print_line("OpenXR: View configuration ", OpenXRUtil::get_view_configuration_name(view_configuration), " is not supported.");
		return false;
	}