Scrub code base for literals 1695 and 1694

[kutschke]

Most of these should use the value of the nominal DR period from the GlobalConstantsService. Maybe some need to use an event by event number that will ultimately come from the event header produced by the DAQ. There is currently an MC data product with the event by event value.

Be sure to check all .hh, .cc, .fcl and SimpleConfig .txt files.

[rlcee]

Some uses are very secondary, like histogram boundaries, or nominal acceptance
Validation/src/ValKalSeed.cc: if (t0 > 700.0 && t0 < 1695.0) {
do you want every reference fixed, even this sort of marginal ones?
In this line, you can also see a nominal 700, should that also be in GlobalConstants?