Created FeaturesWindow class

Container for features/expirements on Java
Show features window
Migrated writing on screen methods to features window
Cleaned up imports
Renamed method for descriptiveness
Show menubar

Also add comments
Properly add menu bar on frame
Add an item to menubar item

Add "Exit" menu item
Added menu item for features menu

Add write to screen as menu item
Refactored FeaturesWindow builder
Added ability to respond to menu item
Set menu item write to screen as trigger for writing on screen method
Added logging when clicking write to screen menut item
Refactored EXit menu item
Added exit functionality

Also added comments and changed logger emthod to debug instead of error and info
Merge pull request #3 from ayinozendy/features-window

Create Features Window