Support symlinks on Windows with Python < 3.2

[pjbull]

Cookiecutter currently raises NoSymlinksOnWindowsPythonBefore32 when it finds a symlink on Windows systems with Python < 3.2.

For context, see:

• Original Issue
• Rejected pull request with custom Win32 code
• Accepted pull request for symlinks with NoSymlinksOnWindowsPythonBefore32

It's possible that we can use jaraco.windows to patch the os module on these systems, but that was failing to pass the tests with the skipif removed.

Here is where we currently patch to raise the error:

• Where we currently patch islink
• jaraco.windows patching calls for os module

Here is where we test symlinks, and this test should pass with the skipif removed:

[insspb]

we are not supporting Py 3.2 anymore