Move classes from gloperate

[scheibel]

I think the following list of classes from gloperate branch 0.9 can reside here:

• AutoTimer
• CachedValue
• ChronoTimer

And the following classes of the master branch:

• CyclicTime
• collection (already moved here?)
• make_unique
• offsetof

[cgcostume]

is this still relevant - what is the status on this.