added Gui-project
#55 Tab1 added
new project folder structure. updated dependencies
#55 update Tab3_Display
#56 Tab3
Merge branch 'gui' of https://github.com/Tim1/SW-Architektur into gui
update gitignore for db folder
update gitignore
working Table #56
#55 implemented Tab2_Create.java
#56 Controller for Tab2 and Tab3
added Dialog for saving DTO