Add missing newline at the end of files

src/lib/atmosphere/atmosphere.cpp

@@ -75,4 +75,4 @@ float getStandardTemperatureAtAltitude(float altitude_m)
 {
 	return 15.0f + kTempGradient * altitude_m;
 }
-}
+}

src/lib/atmosphere/test_atmosphere.cpp

@@ -123,4 +123,4 @@ TEST(TestAtmosphere, StandardTemperature)
 
 	// THEN expect standard temperature at 3000m
 	EXPECT_NEAR(temperature, -4.5f, 0.001f);
-}
+}