Add a destructor method to RadioLibHal (#1661)

* Add a destructor function to RadioLibHal

* Fix memory deallocation in ModuleFixture destructor

Author: Vinx911

extras/test/unit/tests/TestModule.cpp

@@ -23,8 +23,8 @@ struct ModuleFixture {
   ~ModuleFixture() { 
     BOOST_TEST_MESSAGE("--- Module fixture teardown ---");
     mod->term();
-    delete[] mod;
-    delete[] hal;
+    delete mod;
+    delete hal;
   }
 };
 

src/Hal.h

@@ -60,6 +60,11 @@ class RadioLibHal {
     */
     RadioLibHal(const uint32_t input, const uint32_t output, const uint32_t low, const uint32_t high, const uint32_t rising, const uint32_t falling);
 
+    /*!
+      \brief Default destructor.
+    */
+    virtual ~RadioLibHal() = default;
+
     // pure virtual methods - these must be implemented by the hardware abstraction for RadioLib to function
 
     /*!