Remove Windows MQTT setup guide and update Navigation class to include custom namespace. Increment version in main application log message to v0.0.2.

src/navigation.cpp

@@ -5,6 +5,8 @@
 
 const std::string SLAM_SERVICE_NAME = "slam_operate";
 
+namespace custom {
+
 Navigation::Navigation() : client_(nullptr) {}
 
 Navigation::~Navigation() {}
@@ -110,3 +112,5 @@ bool Navigation::closeSlam() {
     nlohmann::json data;
     return callSlamService(1901, data);
 }
+
+} // namespace custom