Add Argent & Braavos account declarations

[notV4l]

Is your feature request related to a problem? Please describe. This could allow using katana with Argent & Braavos browser extensions

Describe the solution you'd like Add Argent & Braavos contracts account declaration and check if its enough to make it work.

Checklist

• [x] Argent scripts (version 0.3.0 and 0.3.1) #1579
• [ ] Braavos

[cpp-phoenix]

Hey @notV4l, Please assign it to me

[ponderingdemocritus]

after talking with @kariy we are going to now provide script to easily deploy the hashes if the developer decides

[glihm]

I guess this is completed by having the genesis handling class configuration. If not agreed, please re-open to discuss. 👍