Please format all report values to use ',' for thousands separator to make reading large values easier

[clint-qrypt]

Prerequisites

• I am using the latest version of Locust
• I am suggesting a new feature, not asking a question

Description

Long running Locust.io load tests produce extremely large values. Please format the values displayed in the reports with correct formatting with commas in the thousands separator. Update both the terminal summary an the webUI reports. Any value that is displayed to a user would make reading the reports much easier.