add indyNamespace to the indy ledgers configuration (need to document this: https://hyperledger.github.io/indy-did-method/#indy-did-method-identifiers)

[morrieinmaas]

• add indyNamespace to the indy ledgers configuration (need to document this: https://hyperledger.github.io/indy-did-method/#indy-did-method-identifiers)
• add fully qualified identifier to the anon creds (schema|credential definition) records (replace the non qualified identifier before storing and after retrieving it). For indy we use the did:indy spec identifiers to store.
  • Note: Records stores fully qualified identifier as identifier.
  • Need to transform unqualified to qualified before storing or querying
  • Need to transform qualified to unqualified after retrieving
• Need to return the fully qualified id somehow from the service (either by adding qualifiedId return value, or overriding the id before returning and the setting it as the unqualified again after storing it).
• Ledger module construct fully qualified string/name. Check with that against record store

Originally posted by @TimoGlastra in #900 (comment)

[morrieinmaas]

@TimoGlastra can you assing me, please