api function to select external clock added

Better not to use because the clock selection is not yet stable from FW
side.
PixTestPattern-new parameters: input file name

testParameters updated.
API CHANGE: merge the two probe dictionaries into one for convenience.
Select either analog or digital signals via PROBE_ANALOG / PROBE_DIGITAL.
Bump version to 1.4.3
Rework probes dictionary to be more flexible and return signals
for either analog or digital probes correctly.
PixTestDaq-summary of masked pixels added
Removed useless defaultMaskFiles

Only one defaultMaskFile.dat is needed even for module test.
added impl for hal::SetClockSource() in DUMMY hal

- required change since new function was added w/ commit 0d2498f8ae7fa6a3ba0729059c1b2c5f17970b99
- fixes linking errors when using dummy hal
pxarcore: fix bug where DAQ was not correctly initialized with TBM type
but #tbms instead when calling from api::daqStart()
Merge branch 'master' of github.com:psi46/pxar