Merge develop into main (#353)

## TactilityC
- Add `tt_lvgl_lock()` and `tt_lvgl_unlock()`
- Add `tt_thread_set_affinity()`
- Add support for STL symbols

## Other
- Add `Thread::setAffinity()`
- `GuiService`: replace `#define` with `constexpr`
- Remove log storage and log app for now
- Split up ELF symbols into more groups

TactilityC/Include/tt_lvgl.h

@@ -13,6 +13,12 @@ void tt_lvgl_start();
 /** Stop LVGL and related background services */
 void tt_lvgl_stop();
 
+/** Lock the LVGL context. Call this before doing LVGL-related operations from a non-LVLG thread */
+void tt_lvgl_lock();
+
+/** Unlock the LVGL context */
+void tt_lvgl_unlock();
+
 #ifdef __cplusplus
 }
 #endif