Standard Logging Framework

[DMickens]

Right now we don't have any way to create logs outside of the v-pool package. The v-pool package uses a log function property that is an empty function by default and requires the caller to provide their own log function if they want one. This isn't necessarily a bad way to approach logging, however we want to have a default log function possibly with different log levels that can be turned on or off.

This should be something we make standard across packages if possible.