shell migrations

[brenzi]

Polkadot shell is at spec version 4. (polkadot v0.9.27)
our master is at 13 (polkadot v1.0.0)

pallet	onchain v4	polkadot-v1.0.0	Plan
balances	0	1	👍 migrate
cumulusXcm	0	?
sudo	0	?
system	0	?

question:

• will newly added pallets initialize their storage_version?

[brenzi]

we upgraded directly to v43-with-sudo, incl all migrations:
#254