Restore mask mode in Light2D

[arabgamedev]

Describe the project you are working on

i hope you restore mask mode because it was very handy
for example you can make among us effect for hiding objects behind walls
like this image

Describe the problem or limitation you are having in your project

can't make this effect without mask mode shadows

Describe the feature / enhancement and how it helps to overcome the problem or limitation

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Describe how your proposal will work, with code, pseudo-code, mock-ups, and/or diagrams

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If this enhancement will not be used often, can it be worked around with a few lines of script?

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Is there a reason why this should be core and not an add-on in the asset library?

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[AThousandShips]

The headings in this are not optional, you have to fill them all in, converting to a discussion, please open discussions instead of incomplete issues in the future