Added a function to soa to parse json from files
test to read json from file
Metric Logger
removed some elements
Interface mostly done, json logging not updating properly yet
Added support for env METRICS_PARENT_ID
functional with json
wrapped commands into failSafeHelper
Provided void logger
Removed test
Merge branch 'metrics_logger'

Conflicts:
	logger/testing/kvp_logger_test.cc
	logger/testing/logger_testing.mk