templates are not interoperable

## Overview
Currently the 2 templates: hyperweb and chain-admin are not interoperable.
We would need to figure out a way in which we can intergrate the hyperweb template with the chain-admin template.

## Proposal
### 2 templates:
* hyperweb: as is, used for contract devs without a frontend
* hyperweb-app: should have hyperweb for contract development, but have an integrated UI for testing and development.

### Alternative: Integrate hyperweb and chain-admin with lerna workspace
Be able to have a `ui` package on the hyperweb template that is able to load contract from `dist` of hyperweb contracts.

CC: @pyramation how to best figure this out?

Start by comparing the hyperweb and chain-admin templates and clarifying whether the target is a new hyperweb-app template or a Lerna workspace. Define how the UI should load contracts from the hyperweb dist output. Done means the chosen template arrangement supports contract development and an integrated UI for testing and development.

索引モデルが issue の本文から書いたものです。