Thort/rewrite java

[tobiashort]

• Rewrite in Java
• Improvements
  • Context menu only shown when right clicking on the editor
  • Copy Full / Header + Selected Data only shows up when opening the context menu on the response side
  • Copy Full / Header + Selected Data places cut text correctly whether (at the end, at the beginning or both)
  • Cut text can now be configured

[emanuelduss]

LGTM