[TX] Fix owner auth signatures indices for DepositTx + examples

[knikos]

Why this should be merged

When building a deposit tx for a restricted offer from an msig wallet, a certain logic with pseudo addresses is incorporated
(see https://github.com/chain4travel/caminojs/blob/dev/src/apis/platformvm/builder.ts#L1387) to facilitate the processing of signatures in case of a multisig keychain.
However, when building the signature indices in the case of the deposit offer owner, the key cannot be found unless you add it to the keychain with the same pseudo address. See https://github.com/chain4travel/caminojs/blob/dev/src/common/multisigkeychain.ts#L250

How this works

This PR addresses this issue by refactoring addOwnerAuth and adding the pseudo addresses in the indices. Thus, when adding the owner signatures to the ms keychain using the getOwnerSignatures, there will be a match between the pseudo addresses set in the Output Owners via the builder and the ones added via addOwnerAuth.

How this was tested

See new examples.

[github-actions]

⚠️ Found errors/fatal log records. Please review them(job:e2e, step:"Check produced logs") and resolve this comment.

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