Put everyting into ur_rtde_driver namespace

src/ur/server.cpp

@@ -25,6 +25,8 @@
 #include <cstring>
 #include "ur_rtde_driver/log.h"
 
+namespace ur_rtde_driver
+{
 URServer::URServer(int port) : port_(port)
 {
 }
@@ -149,3 +151,4 @@ bool URServer::readLine(char* buffer, size_t buf_len)
   *current_pointer = '\0';
   return true;
 }
+}  // namespace ur_rtde_driver