Create basic settings UI

Add font picker to editor toolbar
Implement save
Remove code for selecting Google font

Move code for selected a Google font to the editor
Populate editor with saved data
Add support for Google fonts
Standard and Google fonts

Add font handlers for when a standard or Google font is selected
Restore standard and Google fonts when settings are opened
Add support for using custom fonts in the editor
Merge pull request #1 from Rise-Vision/feature/editor

Integration of Font Picker into Text Widget