[OWL-358] Change the character set
[OWL-358] Change the character set

Replace the character sets when creating tables in database `graph`

Cepave/open-falcon-backend,minimum-hsu/scripts,Cepave/open-falcon-backend,minimum-hsu/scripts,masato25/open-falcon-backend,Cepave/open-falcon-backend,masato25/open-falcon-backend,masato25/open-falcon-backend,Cepave/open-falcon-backend,masato25/open-falcon-backend,masato25/open-falcon-backend,Cepave/scripts,Cepave/open-falcon-backend,Cepave/open-falcon-backend,Cepave/scripts,masato25/open-falcon-backend