Encryptor: Add a separator between fields
Encryptor: Add a separator between fields

This prevents attacks where the encrypted value of two fields can
be compared.

e.g. encrypt("admin" + "123") vs encrypt("admin1" + "23")

Fierozen/owasp-esapi-java,Fierozen/owasp-esapi-java,ibnemahdi/owasp-esapi-java,ibnemahdi/owasp-esapi-java,Fierozen/owasp-esapi-java,ibnemahdi/owasp-esapi-java