Remove rounding from processor count statistic classes

[jtpalmer]

Description

Removes use of the CEIL function in SQL for processor count statistics.

Motivation and Context

The average processor count values are displayed as decimals in the chart tooltips (as well as value labels, etc.). This would imply that the precision of these numbers is higher than what is being returned from the data warehouse. While the maximum and minimum processor counts are expected to be integers, it is reasonable to have non-integer (average) job size (core counts).

Tests performed

Viewed usage tab charts for the altered statistics and observed the now non-integer values.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project as found in the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.