Initial commit.
Move crypto token storage initializing to the server constructor.
Refactor getAccessTokenResponseType().
Add store_encrypted_token_string to the default config array.
Add createDefaultCryptoTokenStorage().
makes suggested improvements on @bojanz PR and adds tests
ensures that access_token storage is CryptoToken, even if defaults are set otherwise, using CryptoTokenInterface
Merge pull request #318 from bshaffer/bojanz-improve-crypto-token-dx

Bojanz improve crypto token dx