demonstrate incognitee with js client

[brenzi]

Make the incognitee testnet tutorial work with js client

No need for fancy integration, just do L1 stuff with js/apps and write what's necessary to talk to incognitee rpc

the following commands must be possible:

• --direct transfer
• --direct unshield-funds
• get-shard-vault
• balance

as a start, check encointer-js worker-api: https://github.com/encointer/encointer-js/tree/master/packages/worker-api

the goal is to later integrate this into a substrate-frontend-template to allow interaction with L1 and L2 from the same portal: https://github.com/integritee-network/incognitee-frontend if possible without extra work, use this as a template for this task already

[clangenb]

Basic functionality is there and tested with node-js unit tests. I believe that the encointer-js can be integrated as is into the incognitee-fronted after a small cleanup: encointer/encointer-js#89

[clangenb]

It seems we can close this, as you have demonstrated the functionality with another frontend?

[brenzi]

done:
https://github.com/integritee-network/incognitee-campaign-page
https://try.incognitee.io