Group API metrics by function name instead of URI to handle the large number of routes when using Ids in the route
Group API metrics by function name instead of URI to handle the large number of routes when using Ids in the route

Signed-off-by: Zach Hill <9de8c4480303b5335cd2a33eefe814615ba3612a@anchore.com>

anchore/anchore-engine,anchore/anchore-engine,anchore/anchore-engine