* add QPS files; enablement not included

* add tests; add qps ping retry walkback

* add off by default config option for QPS

* add qps test to ensure off by default

* only construct qps when enabled

* add qps Sender constants

* add QuickPulseEnvelopeFactory

* fix ts timer compile

* add qps exception and trace error handling

* refactor default live metrics test

* make qps hostname configurable

* fix node0 setTimeout error

* add qps telemetrytype constants

* move away from export enums for ts backcompat

* add qps EventDocument,fix dependency duration

* use envelope type in qps telemetryprocessor

* send avg execution duration instead of last dur

* add error logging for qps endpoint

* add telemetry types, move qps config to qpssender

* fix keying type issue in TelemetryType

* bump version to 1.3.0

* add setSendLiveMetrics to README