umbrella issue for maven project support
Note: For 6.0 we want maven support at least as good as it was in previous
releases. Though not necessarily in the standard build, maybe on autoupdate for now.
the maven support is on DEV AU since M6, leaving this umbrella issue open
because the issues it depends on are still unresolved.
move planning status tags to #98773, closing that issue to have the planning
items marked as fixed.
moving opened issues from TM <= 6.1 to TM=Dev
Change of the default owner.
Pretty well integrated and more coming; let's close this.