Changed PR3's Payload model (k1vispr3p.mdl) to a new model (PAYLOAD_MASTER/PAYLOAD_MASTER).
This work will make the configuration the same as other Type-Bp.
To remove WD and DK, set the following values:
K1:VIS-PR3_TM_WD_OPLEVAC_RMS_MX: 0 -> 10000
The following definition was removed because it does not exist.
Increase/decrease of EPICS channel:
Omitted because it is almost the same as PRM, see attached file for details.