Adding TF category to CPUA

 1) cpus.h
    o Define TF_CPUA.

 2) cpu1_master.h
    o Need to estimate number of targets (continuous, fp step, int
      step, etc) for TF.
    o Create macros for CTA_TF(), FSTA_TF(), ISTA_TF(), etc (like GIS).
    o Add other TF-related items (compare to GIS-related items) :

 3) Create tfcategory_master.h
    o based on giscategory_master.h, because it's short-ish.
    o include pcs_common.h to get IDX_TF def from rtcconfig.h.
    o modify ...
    o Remember: tf_ct_map_cpua[] must be initialized with CTA_TF() ids
      all entries.  Likewise tf_fcn_map_cpua[] with FCNA_TF() ids.

 4) Create tfalgorithms.h
    o Simply a list of algorithm "include"s

 5) Create tf0_master.h
    o Basic algorithm for tf

 6) categories.h
    o Add tfcategory_master.h
    o Add tfalgorithms.h

 7) makeinstall
    o Add new files (tfcategory_master.h, tflagorithms.h,
      tf0_master.h) to INSTALL_INCLUDES list.

MDSplus considerations:
  ppcc (i.e., rich.pppl.gov):
    o Create tcl file with tcl commands for current set of
      waveforms;  copy it to VMS:
          > tcl_waveforms
                  #creates new tcl_waveforms.tcl
          > ftp birch
          FTP> put tcl_waveforms.tcl

  VMS:
    o Edit "add_ppcc_pcs.tcl" if necessary, adding directories
      for new algorithms.
    o Redefine \pcs definitions in MDSplus:
        $ tcl
        TCL> edit engineering
        TCL> @add_ppcc_pcs
                  !Note: this executes the tcl_waveforms.tcl file
                  ! mentioned above ...