www/hiawatha: Update to 10.7

Changes: https://raw.githubusercontent.com/hsleisink/hiawatha/v10.7/ChangeLog

While here, update WWW.

PR: 223112
Submitted by: Chris Petrik <christopherpetrik335@student.athenstech.edu>
Approved by: Chris Hutchinson <portmaster@bsdforge.com> (maintainer)