Kernel improvements (#468)

* **New Features**
  * Plugin-style modules for platforms and devices with start/stop lifecycle and a runtime-consumable device tree array.

* **Refactor**
  * Consolidated initialization into a kernel/module startup flow.
  * Generated devicetree artifacts moved to the build Generated directory.

* **Changes**
  * Removed legacy no-op registration hooks and I2C lock/unlock wrappers.
  * Driver ownership and private state moved to explicit module/owner model.
  * Added ERROR_NOT_ALLOWED error code.

TactilityKernel/Source/drivers/root.cpp

@@ -12,7 +12,8 @@ Driver root_driver = {
     .stopDevice = nullptr,
     .api = nullptr,
     .deviceType = nullptr,
-    .internal = { 0 }
+    .owner = nullptr,
+    .driver_private = nullptr
 };
 
 }