This commit adds a new logging instrumentation. The instrumentation
patches standard library logging module to inject tracing context
variables (otelSpanID, otelTraceID, otelServiceName) into log record
objects. It also optionally calls `logging.basicConfig()` and sets a
logging format that makes use of these vars if instructed by the user.
Joshua
Leighton Chen
Owais Lone
Mario Jonke
(Eliseo) Nathaniel Ruiz Nowell