Add a "Cookbook"

[ZugBahnHof]

Make it able to create a cookbook for "recipes" for certain, reoccurring types of events. You could specify different needed items, as well as the preparation time and the amount of needed technicians

Example:

Event: Simple Church-Event with the Lectern
Ingredients:
 - 2 Lectern-Mics with a flexible neck
- church sound interface
- 2 technichans
- 2 cable drums
…
Time: ca. 15 min preparation time
…
…
…