Move SQL files

diff --git a/loader/materialize_all_months.sql b/loader/sql/materialize_all_months.sql
similarity index 100%
rename from loader/materialize_all_months.sql
rename to loader/sql/materialize_all_months.sql

diff --git a/loader/schema.sql b/loader/sql/schema.sql
similarity index 100%
rename from loader/schema.sql
rename to loader/sql/schema.sql