add txi to camViewer

[baljamal]

Description

add txi to camViewer

Motivation and Context

camViewer script from engineering_tools doesn't work on txi machines

How Has This Been Tested?

txi-control machine manually

Where Has This Been Documented?

[ZLLentz]

The current txi camviewer config file for reference on the options for default camera:

$ cat /cds/group/pcds/pyps/config/txi/camviewer.cfg
# Type, Camera PV prefix, EVR PV prefix, Description, Lens PV
#   EVR PV with blank value ("") means the same EVR as previous camera
include /reg/g/pcds/pyps/config/kfe/camviewer.cfg
#GE,    IM1K3:PPM:CAM:IMAGE1;IM1K3:PPM:CAM,,    IM1K3
GE,    IM1K3:PPM:CAM:IMAGE2;IM1K3:PPM:CAM,,    IM1K3-BINNED

#include /reg/g/pcds/pyps/config/lfe/camviewer.cfg
#GE,    IM1L1:PPM:CAM:IMAGE1;IM1L1:PPM:CAM,,    IM1L1
#GE,    IM1L1:PPM:CAM:IMAGE2;IM1L1:PPM:CAM,,    IM1L1-BINNED

#GE,    IM2L1:PPM:CAM:IMAGE1;IM2L1:PPM:CAM,,    IM2L1
#GE,    IM2L1:PPM:CAM:IMAGE2;IM2L1:PPM:CAM,,    IM2L1-BINNED

GE,    TXI:GIGE:01:IMAGE2;TXI:GIGE:01, ,   TXI01