Project restructuring (fixes macOS builds) (#198)

- Create `Include/` folder for all main projects
- Fix some issues here and there (found while moving things)
- All includes are now in `Tactility/` subfolder and must be included with that prefix. This fixes issues with clashing POSIX headers (e.g. `<semaphore.h>` versus Tactility's `Semaphore.h`)

TactilityCore/Include/Tactility/kernel/PanicHandler.h

@@ -0,0 +1,28 @@
+#ifdef ESP_PLATFORM
+
+#pragma once
+
+#include <cstdio>
+
+#define CRASH_DATA_CALLSTACK_LIMIT 64
+#define CRASH_DATA_INCLUDES_SP false
+
+/** Represents a single frame on the callstack. */
+struct CallstackFrame {
+    uint32_t pc = 0;
+#if CRASH_DATA_INCLUDES_SP
+    uint32_t sp = 0;
+#endif
+};
+
+/** Callstack-related crash data. */
+struct CrashData {
+    bool callstackCorrupted = false;
+    uint8_t callstackLength = 0;
+    CallstackFrame callstack[CRASH_DATA_CALLSTACK_LIMIT];
+};
+
+/** @return the crash data */
+const CrashData& getRtcCrashData();
+
+#endif