Add a reverse Transform for "DictTransformer"

[michaeldcanady]

currently there doesn't seem to be a "simple" approach to converting from a "hcl2Dict" to a Lark.Tree, since the tree to dict conversion is done via the DictTransformer, I think it would be a huge help to have a TreeTransformer, where the dict is converted back into an HCL representation Lark.Tree.

[kkozik-amplify]

Hey @michaeldcanady,

we just released version 6.0.0 with support of Python dicts to HCL2 reconstruction. Please check it out and let me know whether it meets your requirements!