add missed 3rd party dependencies: dynamixel; update README

[le-horizon]

Somehow I need this change to be able to build wx_armor, otherwise, it complains when make.
Also updated README.

[ 30%] Building CXX object CMakeFiles/wx_armor_driver.dir/wx_armor/wx_armor_driver.cc.o
In file included from /home/horizon/interbotix_xs_driver/wx_armor/wx_armor/wx_armor_driver.cc:1:
/home/horizon/interbotix_xs_driver/wx_armor/wx_armor/wx_armor_driver.h:45:10: fatal error: dynamixel_workbench_toolbox/dynamixel_workbench.h: No such file or directory
45 | #include "dynamixel_workbench_toolbox/dynamixel_workbench.h"
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[2]: *** [CMakeFiles/wx_armor_driver.dir/build.make:76: CMakeFiles/wx_armor_driver.dir/wx_armor/wx_armor_driver.cc.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:117: CMakeFiles/wx_armor_driver.dir/all] Error 2
make: *** [Makefile:136: all] Error 2

[QuantuMope]

An older PR includes this information that was never merged.
#25

In that PR, I also created a script that installs all dependencies and builds wx_armor.

Want me to test it on gail8? Should be a quick cherry-pick

[QuantuMope]

Also regarding several of the cmake changes. Those can be removed by setting

export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH

in your .bashrc. This is mentioned in the above PR.

[le-horizon]

Also regarding several of the cmake changes. Those can be removed by setting

export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH

in your .bashrc. This is mentioned in the above PR.

Ah, this is not very user friendly. It's perhaps better to make a more robust build script?