Provision software to Ysul
Summary:
This change installs the same userland environment than on Eglide,
and provides for local additions.
This change also hunted the following tasks to saltize them:
Test Plan: salt-call state.apply roles/devserver/userland-software
Reviewers: dereckson
Reviewed By: dereckson
Subscribers: FRWPKumkum, xcombelle
Maniphest Tasks: T1268, T1273, T432, T431, T430, T1119, T456, T453, T440
Differential Revision: https://devcentral.nasqueron.org/D1070