[FEATURE] Switch View Helper

Simple view helper that allows you to render content depending
on a given value or expression.
It bahaves similar to a basic switch statement in PHP.

Usage:

<f:switch expression="{person.gender}">
  <f:case case="male">Mr.</f:case>
  <f:case case="female">Mrs.</f:case>
</f:switch>

Change-Id: I44a7066dfa86785f795069e0f06391cb45fa373c
Resolves: #48653
Releases: 6.2
[TREE][BUGFIX] Reset table standard styles

Change-Id: I69560165569204364a68c4c8b977dadd9f6fdbc5
[DOCHEADER][BUGFIX] Reset the docheader height

Change-Id: I3ecd862d6a1512a0f277989d2f65f20fb92436f3
[DOCHEADER][TASK] Lighten up docheader-buttons

Change-Id: I168ca590ea1795f60e71bac6a9f3f948752592ce