Issue#59: Fix createSchema.ts and add npm run schema

Signed-off-by: Lucas Fernandes de Oliveira <lfo14@inf.ufpr.br>
2 jobs for issue/59 in 2 minutes and 22 seconds (queued for 4 seconds)
Status Name Job ID Coverage
  Test
passed run_tests #22489
node postgres

00:01:00

93.29%
 
  Build
passed build #22490
docker build

00:01:21