Fix modernize-use-override warnings

include/gnss_utils/receivers/novatel_raw.h

@@ -11,7 +11,7 @@ public:
   NovatelRaw();
   ~NovatelRaw();
 
-  RawDataType addDataStream(const std::vector<uint8_t>& data_stream);
+  RawDataType addDataStream(const std::vector<uint8_t>& data_stream) override;
 };
 } // namespace GnssUtils
 

include/gnss_utils/receivers/ublox_raw.h

@@ -11,7 +11,7 @@ public:
   UBloxRaw();
   ~UBloxRaw();
 
-  RawDataType addDataStream(const std::vector<uint8_t>& data_stream);
+  RawDataType addDataStream(const std::vector<uint8_t>& data_stream) override;
 
 private:
 

test/gtest/utils_gtest.h

@@ -81,7 +81,7 @@ extern void ColoredPrintf(GTestColor color, const char* fmt, ...);
 class TestCout : public std::stringstream
 {
 public:
-  ~TestCout()
+  ~TestCout() override
   {
     PRINTF("%s\n", str().c_str());
   }