Show recommendations of full changeset with opt-out

[HebaruSan]

Motivation

Currently we show only the recommendations and suggestions for the mods the user selects. The recommendations and suggestions of dependencies aren't shown, even though the user stands to benefit from seeing them.

Changes

• Now recommendations and suggestions are shown for the full changeset, including both user-selected mods and all of their dependencies, except...
• The KSP-RO folks don't want that for their modules, because the list would be very long and some of it might not be applicable to an RSS install, so modules can do this to opt out:

  depends:
    - name: AMod
      suppress_recommendations: true

  With that in place, AMod would be pulled in as a dependency, but its recommendations and suggestions (and those of its dependencies) won't be shown. This will allow the RP-1 install's listings to be kept shorter.

This is done with a new relationship resolver option, get_recommenders, which stops searching the relationship tree when suppress_recommendations is found.

Fixes #3838.

As a courtesy, before the next release, we should submit pull requests adding suppress_recommendations to the depends relationships of these metanetkans:

• https://github.com/KSP-RO/RealSolarSystem/blob/master/RealSolarSystem.netkan
• https://github.com/KSP-RO/RealismOverhaul/blob/master/RealismOverhaul.netkan
• https://github.com/KSP-RO/RP-1/blob/master/RP-1.netkan
• https://github.com/KSP-RO/RP-0/blob/master/RP-0.netkan
• https://github.com/KSP-RO/RP-1-ExpressInstall-Graphics/blob/main/RP-1-ExpressInstall-Graphics-Low.netkan
• https://github.com/KSP-RO/RP-1-ExpressInstall-Graphics/blob/main/RP-1-ExpressInstall-Graphics-Medium.netkan
• https://github.com/KSP-RO/RP-1-ExpressInstall-Graphics/blob/main/RP-1-ExpressInstall-Graphics-High.netkan

FYI to @NathanKell that this may be on its way.

[NathanKell]

Thank you for the headsup! I agree this is (in general) a great feature. It's just, as you say, dangerous for us. :D

The other netkans would be the Express Install ones ( https://github.com/KSP-RO/RP-1-ExpressInstall/blob/main/RP-1-ExpressInstall.netkan and the three graphics ones at https://github.com/KSP-RO/RP-1-ExpressInstall-Graphics ). Oh and RSSCanaveral-HD and CanaveralPads since those dep some stock mods that then rec other stock-KSC-focused mods.

I think that covers us? I don't think we have to worry about the ROMods because they don't dep much at all, but I might eventually do a pass on every mod of ours to suppress it (because most will dep, say, B9PS or TU or something like that).

As I understand it, this is how the netkan-inflater action runs anyway, or something like that? Certainly it pulls in more than depends.

[techman83]

Really neat feature! Thanks @HebaruSan