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/Source/TactilityHeadless.cpp

@@ -1,15 +1,15 @@
-#include <Dispatcher.h>
-#include "TactilityHeadless.h"
-#include "hal/Configuration.h"
-#include "hal/Hal_i.h"
-#include "service/ServiceManifest.h"
-#include "service/ServiceRegistry.h"
-#include "kernel/SystemEvents.h"
-#include "network/NtpPrivate.h"
-#include "time/TimePrivate.h"
+#include "Tactility/TactilityHeadless.h"
+#include "Tactility/hal/Configuration.h"
+#include "Tactility/hal/Hal_i.h"
+#include "Tactility/network/NtpPrivate.h"
+#include "Tactility/service/ServiceManifest.h"
+#include "Tactility/service/ServiceRegistry.h"
+
+#include <Tactility/Dispatcher.h>
+#include <Tactility/time/TimePrivate.h>
 
 #ifdef ESP_PLATFORM
-#include "EspInit.h"
+#include "Tactility/InitEsp.h"
 #endif
 
 namespace tt {