perf-0.12.0.0: ChangeLog.md

0.12.0.0
===
* added reportMain and support for executable development.
* refactored app/perf-explore
* created app/perf-bench and aded as a `cabal bench` thing.

0.11.0.0
===
* added Perf.Count
* GHC 9.6.2 support

0.10.0
===
* GHC 9.2.1 support
* inclusion of BigO

0.9.0
===
* Removed deepseq dependency

0.8.0
===
* GHC 9.0.1 support
* internal fixes to remove numhask dependency