feat(dobj/LockableDObject): added thread safe implimentation of DObject

In order to build a preformant code code base we may want to make parallized code in which case having a lockable DObject is a useful construct

src/dobj/private/LockableDObject.cpp

@@ -0,0 +1,22 @@
+#include "LockableDObject.h"
+
+/**
+ * @brief Access the underlying DObject.
+ */
+DObject& LockableDObject::get() {
+    return object_;
+}
+
+/**
+ * @brief Locks the mutex to ensure thread-safe access.
+ */
+void LockableDObject::lock() {
+    mutex_.lock();
+}
+
+/**
+ * @brief Unlocks the mutex after thread-safe access.
+ */
+void LockableDObject::unlock() {
+    mutex_.unlock();
+}