Merge changes from topic "cputimeinstate-cp"

* changes:
  libtimeinstate: correctly handle devices with no boost freqs
  libtimeinstate: move map format info into shared header
  libtimeinstate: support concurrent_{active,policy}_time
  libtimeinstate: change map format to improve performance
  libtimeinstate: support cpufreq fast switching
  libtimeinstate: fix bug in clearUidCpuFreqTimes
  libtimeinstate: add more tests
  libtimeinstate: use std::optional
  libtimeinstate: fix map names