Do not load fat combined in planning v2

In order to improve performances for new view planning v2, only load a
subset of javascript files so that:
- the sidebar is collapsable
- navigation can be used with keyboard shortcuts
- dropdowns in top navbar works
- motd does not overlap main content
- the scrollbars in navigation are sexy
- tooltip on private/public icon

Part of story #7511: Drag'nDrop backlog items on Planning v2

Change-Id: I1f1a2d5c6b23559e22861c646d6a3ac0f28743ad
Merge commit 'refs/changes/81/3281/8' of ssh://gerrit.tuleap.net:29418/tuleap into tuleap-stable-master

* ssh://gerrit.tuleap.net:29418/tuleap:
  Do not load fat combined in planning v2

Conflicts:
	plugins/agiledashboard/include/autoload.php

Change-Id: I301cf84fb7a564affcc886c9492b4a4049a6f41c
This is Tuleap 7.7.99.35

Change-Id: Ia946b8bd0b2af82d84f8474334573dfec133264c