integrate user files table with liquibase. Refs #16743
integrate project folders table with liquibase. Refs #16743
integrate project files table with liquibase. Refs #16743
integrate users and authorities tables with liquibase. Refs #16743
replace executing sql to liquibase support. Refs #16743
add table not exist preconditions to changeSets. Refs #16743
Merge branch 'master' of https://github.com/eea/eionet.webq
Integrate Liquibase maven plugin.