Add template management

Add a means for managing templates, upload or edit them, and connect them to objects or views where they are allowed to be used.

added new-feature in Teckids / TIC-Desk label

removed milestone

moved from Teckids/ticdesk#55 (moved)

changed the description

https://github.com/misli/django-template-admin

added part::backend type::feature workflow::discussing labels

unassigned @nik

changed due date to February 07, 2020

created branch feature/template-management to address this issue

changed milestone to %2.0a2

https://github.com/kezabelle/django-template-selector/pull/6

assigned to @nik

added workflow::confirmed label and removed 1 deleted label

removed due date

added part::backend type::feature labels

unassigned @nik

removed milestone

mentioned in merge request Teckids/ticdesk!55