Allow aliases to link to an object

[six7]

Example: { "primitives": { "gap": { "xs": "4px", "s": "8px", "m": "16px", "l": "32px", "xl": "64px" } }, "spacing": "$primitives.gap" }

Reported in #70

[six7]

We've kind of put this on hold as it's not very clear from a UI point of view how to differentiate tokens that are coming from an object from tokens that are actual tokens.

[SamIam4Hyma]

@six7 suggest to close this one as its stale and can be reimagined later

[six7]

Yeah unfortunately i dont see this move forward within the spec anytime soon, closing.