LDEV-2823: Add properties that select whether standalone or embedded MySQL should be used for LAMS run and/or build. Make all Tools use MXJ connectors if needed. Make Tool Deployer usage lighter - libraries are not copied to Tools but they are referenced from a single spot. Copy MXJ connectors from "mysql_embedded" project if needed.
LDEV-2646: Allow access control for viewing/editing a copy/original template in Planner nodes for Teachers. Swap collapse/expand arrows - it seems more right now. Some clean up - move PlannerActivityMetadata to a proper packet, change some labels etc.