Future Arch improvements

[aerydna]

TODO list:

• add namespaces
• remove lib extension from the load of the library
• remove pugi from interface
• fix plugins location policy
• fix exported headers
• check error and report helper function
• add action (genericaction) "kill" instead of executing empty with kill argument
• add action (genericaction) check_if_ is_in_execution
• support remote action execution
• support remote precondition execution via ssh
• test failure timeout
• parallel test support
• make sure that if an action throws an error his execute method will not be called
• investigate if making output value from actions connectible to input value of other actions (this could be resolutive also for syncronization)
• repetitions also with time check and frequency ("repeat until ... at a frequency of ...")
• Action::execute returning a STOP or CONTINUE repetition instead of bool
• decide what to do with pugi (yarpActionDepotStart)
• define if use or not lib prefix.
• remote connection interface.
• math function for parametric test.
• create custom library.
• create ROS library.
• create tests groups in file and in code.