Move binaries directory under binaries

[Christian-B]

The binaries are currently stored in a directory that not inside (a child directory of) the main spinn_pdp2 directory.

This result in the code only working if installed in developer/ edittable mode.

In developer / editable mode the spinn_pdp2 directory is only referenced not copied into site_packages
Therefor the code
path to binary files
binaries_path = os.path.join(os.path.dirname(file), "..", "binaries")
works.

In a normal install the spinn_pdp2 directory is copied into site_packages.
However the "binaries" directory is not.
It could be but with a generic name like "binaries" this is not recommended.
Also the build would fail it you need sudo access to site_packages.

The PyPA recommends that any data files you wish to be accessible at run time be included inside the package.
ref: https://setuptools.pypa.io/en/latest/userguide/datafiles.html

The fix is to move binaries under spinn_pdp2 and change the code that references it.

[Christian-B]

Currently Jenkins works as it can and still does test this repository in editable mode.

So this is not urgent if there are no plans to release the code.

[Christian-B]

if you would like me to do the change Please assign this to me and I will propose a PR.