PLATFORMCI-1180 - CI testing metrics

[gsr-shanks]

Description
Automatic collection of metrics messages from all CI instances

[jcanderle]

Message Definition

Message	key	value format	notes
header	timestamp	unix timestamp
	message_id
payload	component	string(256)	for use-case 1,2a,2b,4 *)
	trigger		use-cases: 1,2a,2b,3,4 *)
	tests executed in CI-OSP	u_integer
	tests failed in CI-OSP	u_integer
	tests executed in beaker	u_integer
	tests failed in beaker	u_integer
	base distro	string(256)	(vocabulary) RHEL 7.2+updates, 7.3, z-stream etc.
	compose_id		for use-case 3 only *)
	brew_task_id		use-case 1,2a,2b *)
	infra problem during testing	set	(vocabulary)
	what failed	string(1024)
	job names	string(256)	unique on PJM
	build_type	set[official,scratch]	use case 1,2a,2b *)