Implement support for module symbols (#475)

* **New Features**
  - Adds module symbol support and per-module symbol tables, including LVGL symbol exports moved into a dedicated table.
* **API**
  - Adds symbol-resolution APIs and an accessor to enable dynamic lookup between modules.
* **Bug Fixes / Chores**
  - Explicitly initializes module symbol pointers across device and platform modules to avoid uninitialized state.
* **Tests**
  - Updates tests to account for symbol pointer initialization.

Tests/TactilityKernel/ModuleTest.cpp

@@ -35,6 +35,7 @@ TEST_CASE("ModuleParent destruction with children") {
         .name = "test",
         .start = test_start,
         .stop = test_stop,
+        .symbols = nullptr,
         .internal = {.started = false, .parent = nullptr}
     };
 
@@ -62,6 +63,7 @@ TEST_CASE("Module parent management") {
         .name = "test",
         .start = test_start,
         .stop = test_stop,
+        .symbols = nullptr,
         .internal = {.started = false, .parent = nullptr}
     };
 
@@ -100,6 +102,7 @@ TEST_CASE("Module lifecycle") {
         .name = "test",
         .start = test_start,
         .stop = test_stop,
+        .symbols = nullptr,
         .internal = {.started = false, .parent = nullptr}
     };