near Support for UserData Types

[TheNexusAvenger]

return function()
    describe("Vector3", function()
        it("should be near to itself", function()
            expect(Vector3.new(1, 2, 3)).to.be.near(Vector3.new(1, 2, 3)) --"Expecation value must be a number to use 'near'"
        end)
    end)
end

near is useful for comparing numbers, but only if they are numbers. UserData types like Vector3s and CFrames can't use this feature. I would like to be able to use near on data types like these so I don't need to create my own helper functions to do it.

I can make a pull request for this change if I am given some guidance on what is ideal for the design. The main decision would be on how to store the number fields to fetch for the various types.

[ployt0]

Would this be an acceptable feature?

TestEZ feels like it is geared for unit testing Lua before Roblox offers up UserData types.