We are switching completely to ranged loop. https://github.com/storj/storj/issues/5368 Change-Id: I8583549973cd36aa0e0c482c20d7a75cb7568ab3
implemented observer and partial, created new structures to keep mon metrics remain in same way as in segment loop Change-Id: I209c126096c84b94d4717332e56238266f6cd004