Migrate all old Identities to ETHR DID

[pelle]

This creates 4 different scenarios for old identities:

• if you have an identity without a HD wallet and attestations or mainnet accounts it updates it to use a HD wallet
• If you have a HD identity and the seed is no longer in your keychain it is likely because you have a new phone. Hook to ask for Recover Seed. (To be implemented in sister PR)
• If you have an EthrDID or a HD Legacy Identity it doesn't do anything
• For all other legacy identities it creates a new modern ETHR Identity and copies over old data

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (develop@bf3aba9). Click here to learn what that means.
The diff coverage is 83.66%.

@@            Coverage Diff             @@
##             develop      #59   +/-   ##
==========================================
  Coverage           ?   61.17%           
==========================================
  Files              ?      275           
  Lines              ?     9149           
  Branches           ?     1887           
==========================================
  Hits               ?     5597           
  Misses             ?     3148           
  Partials           ?      404

Impacted Files	Coverage Δ
lib/sagas/requests/verificationSignRequest.js	0% <ø> (ø)
lib/sagas/startupSaga.js	0% <ø> (ø)
lib/sagas/metrics.js	0% <0%> (ø)
lib/screens.js	0% <0%> (ø)
lib/constants/MigrationActionTypes.ts	100% <100%> (ø)
lib/reducers/migrationsReducer.ts	100% <100%> (ø)
lib/selectors/migrations.ts	100% <100%> (ø)
lib/selectors/attestations.js	98.46% <100%> (ø)
lib/sagas/keychain.js	83.5% <100%> (ø)
...as/migrations/InvalidateIdentityWithMissingKeys.ts	100% <100%> (ø)
... and 5 more

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