Add a column for proposal ID in DESIGN/CONFIG table in pfsDesign/pfsConfig files

In the current openuse policy, the PFS fibers will be shared among more then one programs. It is efficient to add a column for the proposal id(s) in pfsDesign and hence pfsConfig in order to  know which target is for which program (and manage access during their priority period).

Details (column name, data format) will be added.