Refactor and clean up HK and Local Pool Modules

unittests/mock/HkReceiverMock.h

@@ -0,0 +1,16 @@
+#ifndef FSFW_UNITTEST_TESTS_MOCKS_HKRECEIVERMOCK_H_
+#define FSFW_UNITTEST_TESTS_MOCKS_HKRECEIVERMOCK_H_
+
+#include <fsfw/housekeeping/AcceptsHkPacketsIF.h>
+
+class HkReceiverMock : public AcceptsHkPacketsIF {
+ public:
+  explicit HkReceiverMock(MessageQueueId_t queueId) : queueId(queueId) {}
+
+  [[nodiscard]] MessageQueueId_t getHkQueue() const override { return queueId; }
+
+ private:
+  MessageQueueId_t queueId;
+};
+
+#endif /* FSFW_UNITTEST_TESTS_MOCKS_HKRECEIVERMOCK_H_ */