Boot-up Time Delay Taxonomy

NOTE!! - This information has not yet been transferred from the internal wiki yet.

The goal of the taxonomy is to organize the different delays into categories based on (at least) 3 different attributes:
 * boot phase where boot phase is one of: firmware, kernel, user space
 * magnitude
 * type of delay where type is one of: systemic, hardware, busy-wait

(delay type is weird. I need  to think about this more - TimBird)