Revert "Remove unused semantic.json"
Revert "Remove unused semantic.json"

This reverts commit 64cc17fe1912c24f9df4d1fec9a35719ba3ac4f9.

Ref:
- https://github.com/yarnpkg/yarn/issues/976

tarvos21/forest-themes,semantic-ui-forest/forest-themes,semantic-ui-forest/forest-themes