[Khushal/Priti] Modified build.gradle to have tasks for migrating both types of DB. Added migrateDB and showDBInfo with params as DB name. They wrap over flyway so that one can pass DB name as param. Also seperated the migration folder into list_db and core_db so that migrations for tenant list and core tenent db can be placed in different folders.
Added seperate gradle tasks for migrating a list DB and a tenant DB. No need to now pass a folder name. Discussed with Vishwas, and modified the war task to pick up the migration files from the appropriate folder... core_db folder.
Merge remote-tracking branch 'khusha/FlywayWrapperTasksForDBMigration'
add sensible defaults to db wrapper tasks.