curve node improvements

Several ideas for the curve nodes found in geo nodes, compositor, and the material editor:

Ability to select multiple curve points with shift click or box select, and then be able to move them at once. Handy if you want to move an s curve until they affect a specific range as shown in the parade scope.

Show the scopes in the curve editor so you can easily see where to place points. The scope would update to show the output values. This would remove the need to constantly change which node is connected to the viewer because there'll be less need to use the scopes in the image editor's view mode. This would be even more important for geometry nodes, because there's currently no way to use scopes there.

Animate individual curve points. Avoids having to add multiple curve nodes and animating the fac that mixes them. For even more power, when adding a new curve point, a new x,y socket could appear on the node for that point, allowing the position to be driven by an external 2 dimensional vector.

Right click to add new point. This would allow for the closest point to be selected from further away, making selection easier without having to zoom right in to avoid accidentally adding a new point.

A new curve editor which shows the curve of the selected node. This would allow the user to scale the panel hosting the curve editor to whatever size they like for easier manipulation of the curve without having to constantly zoom in and out on the node. Even at full zoom currently it's not possible to move curve points small amounts without needing to revert to using the x/y text inputs.