Upgrade EasySIMBL to v1.7.1

- Upgrade EasySIMBL to v1.7.1
- Remove unnecessary trailing slash from GitHub-hosted homepage url
- Change license to GPL
  (https://github.com/norio-nomura/EasySIMBL#license)
- Add zap stanza
Merge pull request #7731 from ardecvz/easysimbl

Upgrade EasySIMBL to v1.7.1