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.

Firmware/Source/Main.cpp

@@ -3,6 +3,11 @@
 #include <tactility/driver.h>
 #include <devicetree.h>
 
+// From the relevant platform
+extern struct Module platform_module;
+// From the relevant device
+extern struct Module device_module;
+
 #ifdef ESP_PLATFORM
 #include <tt_init.h>
 #else
@@ -14,10 +19,6 @@ extern const tt::hal::Configuration hardwareConfiguration;
 
 extern "C" {
 
-extern void register_kernel_drivers();
-extern void register_platform_drivers();
-extern void register_device_drivers();
-
 void app_main() {
     static const tt::Configuration config = {
         /**
@@ -31,12 +32,7 @@ void app_main() {
     tt_init_tactility_c(); // ELF bindings for side-loading on ESP32
 #endif
 
-    register_kernel_drivers();
-    register_platform_drivers();
-    register_device_drivers();
-
-    devices_builtin_init();
-    tt::run(config);
+    tt::run(config, &platform_module, &device_module, devicetree_devices);
 }
 
 } // extern