CORE-1626 createIndex does not work for function based indexes anymore

Handle a index function like "substr(fahrzeug_id, -4, 4)"
CORE-1626 createIndex does not work for function based indexes anymore

Handle a index function like "substr(fahrzeug_id, -4, 4)"
CORE-1544 liquibase-maven-plugin: diffChangeLog goal is missing

Updated documentation