This adds the estimated_histogram to the utils definition file.
The estimated_histogram holds a list of buckets and a list of buckets
offsets.
Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
The utils file will hold general modules, that need to be used by
multiple modules.
As a start, it holds the histogram definition.
Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>