Search diploma data

[mkhumml]

As a teacher I want to search for diploma master data so that I can find diploma theses quickly.

Acceptance criterias:

• The diploma thesis consists of: title (1), author (1-n), tutor (1-n), year of creation (1), diploma thesis logo (1), abstract (1), department (1)
• To search for diploma master data there will be a searching area
• If you don't know the used tag, you can write down the title / author / tutor / year of creation / department to search for diploma thesis
• To search for the input you have to submit
  • If there is no master data according to the input, there should be a message shown to the user
  • If there is one or more master data according to the input, all diploma thesis with this master data should be shown to the user