Create hal-device module, fix GPIO, fix tests, fix TactilityC (#471)

* **New Features**
  * Added a HAL device module providing device enumeration, type queries and a HAL↔kernel bridge.

* **Improvements**
  * Integrated HAL module into startup; standardized module names, includes and lifecycle logging; safer file append behavior; broader build support.

* **API Changes**
  * Driver lifecycle now uses explicit add/remove semantics; C and HAL device type/lookup APIs clarified.

* **Chores**
  * Added module README and Apache‑2.0 license; updated build configuration to include the new module.

* **Fixes**
  * Updated tests and object file handling to behave correctly.

Tests/TactilityKernel/Main.cpp

@@ -3,6 +3,7 @@
 #include <cassert>
 
 #include <tactility/freertos/task.h>
+#include <tactility/kernel_init.h>
 
 typedef struct {
     int argc;
@@ -10,6 +11,11 @@ typedef struct {
     int result;
 } TestTaskData;
 
+extern "C" {
+// From the relevant platform
+extern struct Module platform_module;
+}
+
 void test_task(void* parameter) {
     auto* data = (TestTaskData*)parameter;
 
@@ -20,6 +26,8 @@ void test_task(void* parameter) {
     // overrides
     context.setOption("no-breaks", true); // don't break in the debugger when assertions fail
 
+    check(kernel_init(&platform_module, nullptr, nullptr) == ERROR_NONE);
+
     data->result = context.run();
 
     vTaskEndScheduler();