Closes #4096, adding range parameter to histogram functions

[vasslitvinov]

Closes #4096. Required by Bears-R-Us/arkouda-contrib#179

Adds numpy-style optional range parameter to client histogram functions:

• histogram()
• histogram2d()
• histogramdd()

Switches the histograms produced by histogramdd() to contain float counts instead of integer counts, to match numpy.

While there:

• Makes histogramdDMsg() more efficient.
• Factors out some histogram server code.
• Removes the dependence of histogramdd() on cumprod().
• Cleans up Makefile to remove an extraneous / and trailing whitespace.

[vasslitvinov]

Thank you @jaketrookman for the approval. I am working to implement the last open item for this PR, which is to use float when passing the range parameter to Chapel in all cases, even when operating on integer data. This is to implement numpy-like behavior. I will ping you once it is ready.

[vasslitvinov]

@ajpotts or @jaketrookman - I have made all the changed I wanted to. Could you please review? These are in the last two commits.

I will rebase everything down to a single commit before merging.

[ajpotts]

Looks good other than the accidental changes to registration-config.json.

[vasslitvinov]

FYI: I just closed and re-opened to restart the CI checks. The failure reported previously, due to failed fetch of https://sourceware.org/pub/bzip2/bzip2-1.0.8.tar.gz, seems transient.