Use the Modifier enum to generate the value.

# Conflicts:
#	src/model/Modifier.java

This reverts commit 505635a9

This reverts commit 3072cd4c

This reverts commit df676635

This reverts commit dace1b8d

This reverts commit 4edde339

This reverts commit 00fafe28

Added main javafx class

See merge request !35

Base system

See merge request !32