added caching to get

[ArnoldSmith86]

Every time get is called, it evaluates the current value of the given property. For cards or when inheritFrom is involved, this can take a bit.

This PR makes get remember the last value it determined and hopefully every possibility of changing that value, removes the cached value.

Now I am very certain that this does not handle all the cases yet. But at least now my test case does not go in an endless loop anymore. The test case was switching the game to Color Whist in the Card Games game. Before this change, it took 2.77s on my laptop. Now it takes 1.19s.

Please help to find stuff that breaks these changes.

• Check if this breaks properties with ${PROPERTY x}.

[ArnoldSmith86]

PR-SERVER-BOT: You can play around with it here: https://test.virtualtabletop.io/PR-2183/pr-test (or any other room on that server)

[bjalder26]

Here is one thing (I think).

Faces doesn't appear to work the same as on the production server. It doesn't seem to actually update anything as you change the faces.

https://test.virtualtabletop.io/PR-2183/pr-test
https://virtualtabletop.io/PR-2183