static folder is now in the same folder as templates

used CreateView for creating new announcements.
added templates for form.

moved the base template folder together with settings.py

created new template for display new assignment form
added new assignment button and link to assignments page
added link to go back to assignment list page
added url routes
created function base view for new assignment form

added listview and detailview along with templates

added alphabetical order to AssignmentListView

Moved the list to the reaction class and defined a constant for
each value

edited AssignmentListView template format
created AssignmentDetailView class
added base.html to templates
created static folder for static files