Add more built-in thread-based processor types

[jpsamaroo]

• ThreadProc -> ThreadLockedProc (no longer default enabled)
• AnyThreadProc: Runs on any thread and allows task migration (default enabled)
• InteractiveThreadProc: Runs on any thread in the interactive threadgroup, if possible (not default enabled)
• NUMAPinnedProc: Pinned to a given NUMA domain, possibly allocated manually (not default enabled)
• CPUPinnedProc: Pinned to a given logical CPU, possibly allocated manually (not default enabled)