#862 Adding a FBDK/IP toturial in 4DIAC-IDE help

[G. Sfiris]

Hello all,

I created a patch for adding a FBDK/IP tutorial in 4DIAC-IDE help. It's my first time so please mention any faults I did.

@Alois I added some text and changed the old one so it is clear that Client/Server FBs work in pairs, while Publish/Subscribe FBs don't.

@Monika I think that information about extending the communication FBs must be added in another section, as it is more general.

Cheers,
Giorgis

[Monika Wenger]

patch added in cset [fordiac-ide:4f239a] and [fordiac-ide:b5d1ba]