Require a keybind for the mode switch of the wrench

[Jack-McKalling]

Issue type:

• ➕ Feature request

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Short description:

When you want to switch the wrench from standard mode to positioning mode, or vice versa, it should require the press of a keybind (e.g. 'v' like in Thermal Expansion), instead of shift+right click.

Why:

Because this combination of keys is the exact sequence you normally use to pick up blocks, and if you happen to click air with it or mess with the sneak key too fast/slow, it'll switch mode unintentionally.
Which would be incredibly inconvenient if you're in an underground area where everything around you is within reach, because you won't be able to switch back.

[rubensworks]

Thanks for the suggestion!