- Adds the update_idle_power_usage() and update_active_power_usage() procs for the respective vars.
- Switches all places modifying those vars directly to call the procs instead.
- This will let us react to the change appropriately, paving the way towards static area power.
- Adds update_power_channel proc for the sake of completeness, but no machines actually modify it so far.
Adds a new machine to telecomms, which contains special PDAs corresponding to each department on the station. Sending a PDA message to one of these PDAs will duplicate it to everyone in the department the PDA is assigned to. It determines what department someone is in by cartridge type.
Adds cartridges for several jobs that were missing them, for the purposes of being recognized as being in a department. The cartridges otherwise do nothing.
New circuitboard to build the new pda multicaster. It can also be deconstructed with the standard machinery deconstruction steps of screwdriver > crowbar.
