task/ta-147 - Bulk ADP Insert mode should be a configurable option

top/adp.py
* process method() now accepts an additional parameter mode that
  defaults to insert
* new method insert() that performs the ADP insert
* refactor the process() method so that the inserting is performed by
  the new insert() method

top/adpdaemon.py
* update the call to the process() method inside _start() to not
  include the "dry" status as this was redundant