[FEATURE] Improve TCP support

This commit introduces the following features:

* Tool will try to re-establish connection if connection fails.
* TCP tests can be ran idenfinelty (duartion 0, default).
* Using the -i paramter, it is possible to speciy time (in ms) between send()
  calls to TCP.

Support for running test infinitly

TCP sending should work now

Fixed some bugs

Bugfixes

Sending initial info message works fine

Iat should work now

Sleep should work now

Timer working

Use of unint. variable

Fixed

Remove some debug output

IAT works now

Mask out SIGPIPE

Reestablish connection works fine