Insteon_thermo_i2: Fix Comments in Example Code
Insteon_thermo_i2: Remove Complex Tie Example from Example User Code

Will add to individual child objects instead
Insteon_thermo_i2: Add Parent Event Routine to Base Thermostat Code

parent_event is called by tie_event on state changes in the parent.  The routine updates the child object with the correct state
Insteon_thermo_i2: Add Child Object to Parent Hash and Call Tie_Event

The child objects are stored in the parent hash so that the parent can locate the correct child to update it.

tie_events is set on child object creation.