Summary:
To improve the Taquito architecture by moving the importKey function to @taquito/taquito to avoid circular dependencies and optimizing the key compare logic of the KeyToken class in @taquito/michelson-encoder.

Current status:
Currently compare logic in KeyToken class is a temporary fix which is importing crypto package elliptic made both @taquito/michelson-encoder and @taquito/signer both depends on it.
Would be ideal to only have @taquito/signer depends on it, hence we're looking to refactor the compare logic to import function publicKeyFromString from @taquito/signer to deal with the compare public key logic
In the process, we found circular dependency caused by importKey function in @taquito/signer
To prioritize developer experience, we decided to delay to move importKey to @taquito/taquito in the next minor release

Refactor plan:
Phase 1: Move importKey to @taquito/taquito
Phase2: Refactor Key Compare logic in KeyToken Class from @taquito/michelson-encoder to use publicKeyFromString from @taquito/signer

make sure to update dependencies, tests and documentations