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

TactilityC/Include/tt_thread.h

@@ -88,6 +88,12 @@ void tt_thread_set_name(ThreadHandle handle, const char* name);
  */
 void tt_thread_set_stack_size(ThreadHandle handle, size_t size);
 
+/** Set CPu core affinity for this thread
+ * @param[in] handle the thread instance handle
+ * @param[in] affinity -1 means not pinned, otherwise it's the core id (e.g. 0 or 1 on ESP32)
+ */
+void tt_thread_set_affinity(ThreadHandle handle, int affinity);
+
 /**
  * Set the callback for a thread. This method is executed when the thread is started.
  * @param[in] handle the thread instance handle