Please move(transfer) debian/fasttext, debian/sentencepiece into Debian Science Team

I hope the following repository is maintained under Debian Science Team. It is appropriate to maintain under team because of package characteristics.

Actual:

• https://salsa.debian.org/debian/fasttext
• https://salsa.debian.org/debian/sentencepiece

Expected:

• https://salsa.debian.org/science-team/fasttext
• https://salsa.debian.org/science-team/sentencepiece