Include some functions from Utilsplugin2

[akks]

There was very long ago when we moved any functionalty from Utilsplugin2 to core.

At current moment, there are some useful and long-tested functions in this plugin that may help all users.

Of course, the careful discussion is needed and maybe some menu reorganization.
(after we decide which functions should be included)

I propose following candidate functions (most widely used?):

1. Replace Geometry [reason: motivate users to maintain history of objects] (#8821)
2. Add nodes on intersections [reason: it only calls one core function, nothing more]
3. Copy tags from previous selection [reason: very easy to tag similar objects]
4. Search predicates "inside", "intersecting", "adjacent", maybe even "allintersecting", "connected" (#5905)
5. Some of selection menu actions, for example - Unselect nodes, Select adjacent nodes, Select intersecting ways

What do you think? (1-.., 2-.., ...)
(Sorry for huge copy-list)

[Don-vip]

Before adding some new entries to standard "Tools" menu I'd like to fix #5638 and #6355 first.
I like your idea in #6355 comments about the "Data" menu. "More tools" is already used by utilsplugin2, I think we can use it for geometric functions of others plugins too.

[iav]

"Copy from previous selection", "Split object" and "unglue relations" I use really often.

[akks]

OK, let us solve #5638 and #6355 at first by big reorganization of menus.
During that time we can collect opinions about what to include here.

[skyper]

• Split object is nice especially as terracer plugin is buggy and not maintained.
• Replace Geometry see #8821
• Copy tags from previous selection I do not use that much but Paste relations.

[Kovoschiz]

Shameless bump from ​https://discord.com/channels/413070382636072960/782592789284257813/993875845720571914
I don't use "paste relations" much yet, but it is interests me. The most beneficial one personally is "replace membership". Saves uncountable effort compared to moving one-by-one. Aside from "Paste tags from previous selection", "Copy tags" from currently selected objects avoids having to copy the entire object, or remembering to use "paste tags" at the target.

Support 1, 2, 3 the most. 4 and 5 is "All inside", then "intersecting" for me,

"Extract node" would make it on par with (Rap)iD. Honorable mention for "Circle arc", is potentially useful for drawing curves. But again I haven't used it often yet.

[Kovoschiz]

Nearly forgot there is a "Tag multiple objects" in a spreadsheet interface. There is another TagEditor plugin similar to the core Relation Editor, but it is buggy, especially applying tags to objects without them.