Revert "Refactoring to use clear method of drawing board instance"

This reverts commit 10700b3fe392e63ef39568d1a5e165adda4bcf2c.
Revert "Undo/redo Working now. Refactoring WIP"

This reverts commit 3ae5960559c42906828761e4bb77f3b322d67dda.
|#ALL|Adding ionic framework