Show NAN in Inspector

[timothyqiu]

When a float property is NAN, it's shown as 0 in the Inspector.

It's confusing and makes debugging harder. (e.g. when Inspecting a node in Remote scene tree)

[AThousandShips]

I'd call this a bug, possibly an oversight in the implementation, haven't looked at the code though

[Calinou]

Should the same be done for INF as well?

I also don't remember if NAN and -NAN should be displayed the same in the inspector.

[AThousandShips]

The minus is just signalling/non-signalling right? Does that matter in the codebase at all? (Though the exact definition of the NANs is implementation defined)