japanese/font-takao: Update to 003.03.01 and take maintainership

In this release, Takao and TakaoEx fonts are distributed separately.
Update MASTER_SITES and DISTNAME.
Lint with portclippy.
Refactor do-install.

Changelog: https://launchpad.net/takao-fonts/trunk/15.03

PR: 277679
Approved by: hrs (maintainer timeout > 3 months)
Approved by: fluffy (mentor)