Add naming support extension to descriptor upgrade leaving current contract intact

[iainnash]

This PR introduces a metadata descriptor wrapper contract that adds in naming support.

It allows for naming any previously added components and also (if made the admin contract) the ability to proxy additions to the metadata and add names.

Names are returned using 1155 style string properties in the metadata json, largely accepted by most all marketplaces.

Migration plan:

1. deploy new rendering library
2. deploy new descriptor pointing to previous descriptor
3. make a request for the admin to be the DAO
4. [or 3]: add in previous names to the contract
5. propose a batch (1. set owner to DAO, set current descriptor owner to new contract, set nouns renderer to new contract, funds for devs)

Before deployment:

1. code review
2. better testing
3. should previous names be included as a static call to save gas costs upon deploying
   (or will relying on storage be more simple/cleaner to follow)