Fixed #15 memory leak by introducing virtual function into all operation base classes to ensure the dependent class destructors are called

src/include/kompute/operations/OpMult.hpp

@@ -84,7 +84,7 @@ class OpMult : public OpAlgoBase<tX, tY, tZ>
      * Default destructor, which is in charge of destroying the algorithm
      * components but does not destroy the underlying tensors
      */
-    ~OpMult() {
+    ~OpMult() override {
         SPDLOG_DEBUG("Kompute OpMult destructor started");
     }