Feat: one scene loading

[popuz]

What does this PR change?

Close #1217

• Add possibility to load only 1 scene (where Player is presented). It is controlled in RealmPartitionSettings
• Add possibility to load only 1 scene from the start (for worlds)
• Extended commands with additional parameter to load worlds
  /goto-local 5,7 only
/goto goerli 82,1 only

How to test the changes?

1. Launch the explorer
2. type /goto goerli 82,1 only and verify you get in Goerli with just 82,1 scene loaded.
3. type /goto-local 77,1 only and verify you are still in Goerli with just 77,1 scene loaded.
4. Jump to Genesis back (via map or command) and verify it load everything

tip: try to play with scenes loading radius in settings and verify it is not affecting when scene are loaded with only parameter from the chat

NOTE: see previous check of this PR

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