Move Django app launcher to nova-dashboard repository

Moving the former trame app launcher code that was converted to a django project into this repository which has all of the fun python template setup in it.

added CoreDev statusIn Progress labels

assigned to @gzi

added to epic &168 (closed)

mentioned in issue ndip/trame-apps/trame-app-launcher#37 (closed)

mentioned in issue ndip/trame-apps/trame-app-launcher#40 (closed)

mentioned in merge request !1 (merged)

closed with merge request !1 (merged)

mentioned in commit b0a9439c

removed statusIn Progress label