Removing .value from aliases

If all values have to be defined with value, as explained by @chazzmoney in https://github.com/amzn/style-dictionary/issues/119#issuecomment-526755832 , could .value be removed from the end of all aliases (or made optional, to not break existing ones), as it is used everywhere?

Instead of this:

{
  "color": {
    "alert": { "value": "red" },
    "reference": { "value": "{color.alert.value}" }
  }
}

We could write this:

{
  "color": {
    "alert": { "value": "red" },
    "reference": { "value": "{color.alert}" }
  }
}

Not a great gain here on an example with one single alias, but nice in a larger code base.

[chazzmoney]

Added via #746

[nhoizey]

@dbanksdesign I didn’t think about transitive transforms indeed. (They are awesome btw!)

One way would be to try the alias path first, and try with the added .value only if it didn’t match.