Introduce a mechanism to change / scale the number of reported resources

[k15r]

Description

KMC uses a mapping between machine types and their configured resources. IN #3395 this mapping was modified to report 3 cores for 2 core machines.

This introduces confusion and impacts maintainability.

Introduce a proper mechanism that allows scaling the reported resources for select machine types. (eg simply introduce a scaling factor per memory/cores per machine type and use this value in KMC)