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`)

TactilityHeadless/Include/Tactility/Partitions.h

@@ -0,0 +1,21 @@
+#pragma once
+
+namespace tt {
+
+#define SYSTEM_PARTITION_NAME "system"
+
+#ifdef ESP_PLATFORM
+#define MOUNT_POINT_SYSTEM "/system"
+#else
+#define MOUNT_POINT_SYSTEM "system"
+#endif
+
+#define DATA_PARTITION_NAME "data"
+
+#ifdef ESP_PLATFORM
+#define MOUNT_POINT_DATA "/data"
+#else
+#define MOUNT_POINT_DATA "data"
+#endif
+
+} // namespace