Golden Config Override HLD

[wen587]

The is to collect all related Golden Config Override PR list.

these are the implementation PRs for review:

Repo	PR title	State
sonic-utilities	[minigraph] Consume golden_config_db.json while loading minigraph
sonic-utilities	Modify override testcase to cover PORT admin_status
sonic-utilities	Add override testcase to verify removal
sonic-utilities	Add verification for override
sonic-utilities	[minigraph] add option to specify golden path in load_minigraph
sonic-utilities	[minigraph] new workflow for golden path
sonic-utilities	[config]Support multi-asic Golden Config override with fix
sonic-utilities	[config] Generate sysinfo as needed when override config
sonic-utilities	[config]Generate sysinfo in single asic

#2396 and above have been supported in 20220531.08 and later.