added notes field to equipment_objects table
updated migration to increase notes text limit
updated migration to prevent null notes
set notes to empty string in seeds.rb / factory so they don't fail

also added a note to EquipmentObjectController#create to remember to define
the creation note
fixed whitespace in EquipmentObjectController
defined initial note with creation of object
added notes to equipment object show view
added notes to deactivate method (BROKEN)
added notes to activate method (BROKEN)