Deprecate --no-binary implying setup.py install

[sbidoul]

When --no-binary is enabled pip install does not build a wheel and calls setup.py install instead. This happens only for legacy project that don't have a pyproject.toml.

This is currently reported as an info-level statement: Skipping wheel build for %s, due to binaries being disabled for it.

Since setuptools' install command is deprecated, we deprecate this behavior and recommend the --use-pep517 option (which will become our default at some point).

Towards #8102