doc: updated documentation examples

[seehma]

newer TwinCAT versions require namespace access therefore added the namespace to all code examples

[bengeisler]

Thanks for your contribution!

With the latest release however, the namespace has changed to TcLogLib. Please update the PR.

Anyway, that release seems to solve #22 and #21, so maybe we'll just leave the docs as they are?

[seehma]

I updated the documentation. Of course its your choice how to deal with it, we install our libraries (Zeugwerk Framework) always with namespace required. Also Beckhoff often had problems on solving dependency things from libraries without namespace, sometimes it worked well, on some TwinCAT versions the compiler threw error messages. With Qualified access only, the problems were gone.
However, thanks for fixing it, i didnt had the time to take a closer look on it, my workaround with qualified access only was a quick fix :-)