Profiler Stream Active Thread Count

[feelform]

• [x] sequence
• [ ] activeThreadCount
• [ ] ActiveTraceHistogram
• [x] DisableTrace negative transactionId sequence generator It's Java Agent use transactionId's sequence use active request map key
• [x] #226 transactionId's agent information is no needs duplicated data
• [x] remove sampler.js => introduce traceSampler's member variable
• [ ] postProcess keytime sorting