Kernel improvements (#485)

* **New Features**
  * Added public accessors for querying module/device start and ready state.

* **Refactor**
  * Internal state moved to opaque internal objects; module/device/driver initializers now explicitly initialize internal pointers.
  * Lifecycle handling updated to construct/destruct internal state and use accessors.

* **Tests**
  * Tests updated to use public accessors and explicit construct/destruct lifecycle calls.

* **Chores**
  * Test build/include paths and small metadata updated.

TactilityKernel/Source/drivers/gpio_controller.cpp

@@ -32,6 +32,8 @@ error_t gpio_controller_get_pin_count(struct Device* device, uint32_t* count) {
     return GPIO_DRIVER_API(driver)->get_pin_count(device, count);
 }
 
-extern const struct DeviceType GPIO_CONTROLLER_TYPE { 0 };
+extern const struct DeviceType GPIO_CONTROLLER_TYPE {
+    .name = "gpio-controller"
+};
 
 }