V2.0.0-develop.5

Improvements

• Added stringification for std::chrono::{duration,time_point}

Fixes

• fixed benchmarks when using multiple reporters (which happens when you register a listener).
• fixed command line parser (Clara) to report unrecognised options again
• fixed single include for MSVC (#1020)
• (partial) workaround for long-standing bug in some compilers' support for uncaught_exception() (#1028)