[database migration tool] Added liquibase example .properties files

catalogue/migrations/mysql/.gitkeep

catalogue/migrations/oracle/1.0to1.1.sql

catalogue/migrations/postgres/.gitkeep

...ns/properties-examples/example-liquibase-mysql.properties

...s/properties-examples/example-liquibase-oracle.properties

...properties-examples/example-liquibase-postgres.properties

...s/properties-examples/example-liquibase-sqlite.properties

catalogue/migrations/sqlite/.gitkeep