Solved some minor bugs in the Dynamixel 2 interface.

Added an implementation of  aserial port for the F3 family.

Added optimizations (removed debug symbols) in the Makefile.

Changed the way the 16 bit variables are accessed in the incomming and outgoing packets. STM32L0 family generated a system fault with the previous approach.

Added a module to handle the memory interface (both RAM and EEPROM) of dynamixel modules.

See merge request !1

Documented more functions and the main communications structure.

Modified the Makefile to generate the documentation and added the necessary doxygen configuration files.

Implemented the operatiosn interface to register and handle new operations to the manager.
Partially tested most of the features, further testing required.

Added a genric dynamixel manager to handle dynamixel modules.

Solved aproblem in the sync_Read and sync_write commands when one of the addressed devices does not respond in time.

Implemented modules USART1,USART2 and USART4 as module USART3.

Solved some minor errors in the dynamixel slave interface.

Added some serial error interrupts checkings.