1. In MongoBase::Functions,
   hook runCommand() (handles aggregate, find(), findAndModify, insert, update, delete, etc), insert(), delete(), remove(), update(), runCommandWithMetadata() to encrypt and decrypt data
2. Directly call the query_analysis functions to do the transformations
3. Add new functions to transform markings into encrypted data

JSON Schema Management:

1. Query KeyStore for JSON schema and cache JSON schema in memory
2. Add ability to query remote mongodb key store in C++
3. Store schemas in an LRU cache in memory keyed, ie Map<string, BSON>
4. Store keys in an LRU cache in memory as well