Only one process (called the "primary" process) should handle WCCP. In SMP

Only one process (called the "primary" process) should handle WCCP. In SMP
mode, this is the Coordinator process.

Identified several commonly use process kinds and added the corresponding
Iam*Process() tests to avoid duplicating complex conditions throughout the
code. Note that kinds are not mutually exclusive. For example, a primary
process is also the master process and the worker process when running
in a no-daemon mode.