Rename Julia package to BabelStream.jl and add compats

[giordano]

Ref: #113 (comment).

Note: I haven't copied the license because there's a problem: the Julia General registry requires, without exceptions, an OSI-approved license that can be automatically detected by licensecheck, but the top-level license in this repository is a custom one, with some strong restrictions. I don't know if there's any appetite for using a standard OSI license for the Julia implementation only, if not, I'm afraid registration in General will not be possible, but this package can always be installed with Pkg.add(; url="https://github.com/UoB-HPC/BabelStream", subdir="..."). Side note, the top-level license references the wikipage http://github.com/UoB-HPC/BabelStream/wiki/Run-Rules which doesn't exist.

CC: @tom91136.

TODO:

• Rename JuliaStream BabelStream everywhere

[tom91136]

@tomdeakin Could we sub-license or dual licence only the Julia port (or BabelStream itself)?

[tomdeakin]

The license is based on STREAM, and the restrictions there and here are reasonable and important. I don't want to change the license at this time. I'll fix the Wiki link though - thanks for pointing that out.

[tom91136]

The suggested Pkg.add(...) installation method works well for the intended benchmark use case. Thanks again for the PR, we'll merge this and document the required steps for a benchmark run.

[tom91136]

• TODO to self: Add a few sentences documenting the installation procedure

[tomdeakin]

This should have gone to the develop branch. I'm going to revert the commit. Please open this again as a new PR against the develop branch, with changes detailed in the CHANGELOG.

[tomdeakin]

@giordano @tom91136 - see request above.