make_test_environ_builder: use url_scheme from path if provided
make_test_environ_builder: use url_scheme from path if provided

When providing https url in path ("https://example.com/")
we hope that we will get https scheme in environment

fkazimierczak/flask,fkazimierczak/flask,drewja/flask,mitsuhiko/flask,drewja/flask,mitsuhiko/flask,pallets/flask,pallets/flask,pallets/flask,fkazimierczak/flask,drewja/flask