UniformVertex upper bound is not inclusive

[CharlieCrisp]

Describe the bug
The UniformVertex allows you to specify upper and lower bounds but the upper bound is exclusive and doing a logProb() at this value will give -Infinity.

To Reproduce

UniformVertex vertex = new UniformVertex(0.0, 1.0);
vertex.setValue(1.0);
vertex.logProbAtValue();

Expected behavior
Upper bound should be inclusive

[GeorgeNash]

This has been intentionally done to make it easy to map from RNG's. @gordoncaleb has opinions on this so I'll loop him back in when he's back from holiday.