Pull Request for Issue1043: Add deadtime control for SXRMB Bruker Detector

https://github.com/acquaman/acquaman/issues/1043

- add deadtime control to SXRMBBrukerDector
- extend AMXRFDetailedDetectorView, always display the deadtimelabel
- left align deadtime label so that the display will be consistent when
the label text is updated
- fix a bug in the buildProject script

@dretrex @davidChevrier 
@dretrex `deadTimeAt()` is a function of the super class `AMXRFDetector`, which calculates the dead time based on the input count rate and the output count rate.
For `SXRMBBrukerDetector`, the deadtime is not a ratio but a value of the deadtime control. Override this `deadTimeAt()` function in case there are misusage of this function. If no override, it will return "0", which is not correct.