Do not print out so many likelihood values at default verbosity

[bencebecsy]

These two lines produce a lot of output: https://github.com/bencebecsy/QuickCW/blob/8709bf2aae0cd155c211f43ab1b8463abd32648b/QuickCW/QuickMCMCUtils.py#L720

Should probably only print those when verbosity is high