Add AllReady scenario to JitBench (#16905)
* reuse MusicStoreBenchmark for AllReady scenario
* bug fix, should set JITBENCH_FRAMEWORK_VERSION, not JITBENCH_TARGET_FRAMEWORK_VERSION
* include informations from AllReady.dll
* temp: point to my fork before the https://github.com/aspnet/JitBench/pull/85 gets merged
* clone the repo and get the submodule, downloading .zip is not enough when working with GIT submodules
* fail benchmark when git command fails
* point to the updated aspnet/JitBench repo, not my fork