Pull request created for nostr-protocol/nips: #242
NIP-07: Add NIP-26 createDelegation function
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In order to implement [NIP-26](https://github.com/nostr-protocol/nips/blob/master/26.md) by way of [NIP-07](https://github.com/nostr-protocol/nips/blob/master/07.md), a createDelegation function needs to be exposed by the NIP-07 extension.