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/Private/app/files/State.h

@@ -42,7 +42,7 @@ public:
     bool setEntriesForPath(const std::string& path);
 
     const std::vector<dirent>& lockEntries() const {
-        mutex.lock(TtWaitForever);
+        mutex.lock();
         return dir_entries;
     }
 

Tactility/Private/app/wificonnect/WifiConnectPrivate.h

@@ -21,7 +21,7 @@ private:
         .onConnectSsidContext = nullptr
     };
     View view = View(&bindings, &state);
-    PubSubSubscription* wifiSubscription;
+    PubSub::SubscriptionHandle wifiSubscription;
     bool view_enabled = false;
 
 public:

Tactility/Private/app/wifimanage/WifiManagePrivate.h

@@ -12,7 +12,7 @@ class WifiManage : public App {
 
 private:
 
-    PubSubSubscription* wifiSubscription = nullptr;
+    PubSub::SubscriptionHandle wifiSubscription = nullptr;
     Mutex mutex;
     Bindings bindings = { };
     State state;