gladevcp -add an interpreter state sensitive table widget

This widget (and it's children) will be sensitive to the state of
the machine.
options: is homed, is on and/or is idle.
at Estop: will always be insensitive.
gladevcp -remove HAL_Hbox from GLADE editor

This widget can be replaced with HAL_Table.
Romoving it from the editor only will allow it to be depreciated
without causing errors if it is already used. It will still show
on the panel but if you delete it you can't add it again.
gladevcp -have emc_toggleaction_run be sensitive to home and file loaded

You can't run a program without being homed or a file loaded
make the action be sensitive to those states
gladevcp -add an is_auto_mode check to hal_action base

Gonna be used to de-sensitize mdi_history widget when program running
gladevcp -de-sensitize hal_MDI_history widget when running program

can't run MDI commands while running a program
gaxis -update glade file to innclude new state_ sensitive_tables

This allows button to automatically be sensitive when appropriate