#72, long paths now allowed with Go 1.17 on Win 10 version >=1607. Skip path test on 1.17, but run if not 1.17

This target had previously only experimental status because of a now resolved
memory leak.

Closes #23
Updates #72

Updates #76

commit 44e6def788b46aad7f1f031706e99985b64bb343
Author: Jan Mercl <0xjnml@gmail.com>
Date:   Sun Nov 14 11:11:51 2021 +0100

    OK