Implement changes to Python bindings > Create ExternalEncryptionConfig

[avalerio-tkd]

Needed a lot more hours because of discussions on how to properly implement the "transfer" of data form the App to C++. Discussion finalized and the EncryptionConfig is ready to merge. Still remaining ExternalFileEncryptionProperties and changes to CryptoFactory in C++. See Internal - PME Config and Properties Discussion

[sofia-tekdatum]

#8

[sofia-tekdatum]

#9