TactilityCore improvements (#187)

FreeRTOS handles were stored plainly and they were deleted in the destructor of classes.
This meant that if a class were to be copied, the destructor would be called twice on the same handles and lead to double-free.

Seha on Discord suggested to fix this by using `std::unique_ptr` with a custom deletion function.

The changes affect:
- Thread
- Semaphore
- Mutex
- StreamBuffer
- Timer
- MessageQueue
- EventFlag

Thread  changes:
- Removal of the hack with the `Data` struct
- Thread's main body is now just a private static function inside the class.
- The C functions were relocated to static class members

PubSub changes:
- Refactored pubsub into class
- Renamed files to `PubSub` instead of `Pubsub`
- `PubSubSubscription` is now a private inner struct and `PubSub` only exposes `SubscriptionHandle`

Lockable, ScopedLockable, Mutex:
- Added `lock()` method that locks indefinitely
- Remove deprecated `acquire()` and `release()` methods
- Removed `TtWaitForever` in favour of `portMAX_DELAY`

Tactility/Source/app/wificonnect/WifiConnect.cpp

@@ -56,8 +56,7 @@ static void onConnect(const service::wifi::settings::WifiApSettings* ap_settings
 }
 
 WifiConnect::WifiConnect() {
-    auto wifi_pubsub = service::wifi::getPubsub();
-    wifiSubscription = tt_pubsub_subscribe(wifi_pubsub, &eventCallback, this);
+    wifiSubscription = service::wifi::getPubsub()->subscribe(&eventCallback, this);
     bindings = (Bindings) {
         .onConnectSsid = onConnect,
         .onConnectSsidContext = this,
@@ -65,16 +64,15 @@ WifiConnect::WifiConnect() {
 }
 
 WifiConnect::~WifiConnect() {
-    auto pubsub = service::wifi::getPubsub();
-    tt_pubsub_unsubscribe(pubsub, wifiSubscription);
+    service::wifi::getPubsub()->unsubscribe(wifiSubscription);
 }
 
 void WifiConnect::lock() {
-    tt_check(mutex.acquire(TtWaitForever) == TtStatusOk);
+    mutex.lock();
 }
 
 void WifiConnect::unlock() {
-    tt_check(mutex.release() == TtStatusOk);
+    mutex.unlock();
 }
 
 void WifiConnect::requestViewUpdate() {