Building OTCryptoPP for review. Do not merge.

Full OTCrypto implementation in CryptoPP.  Same API.

I still need to do OTAsymmetricKey for CryptoPP.

This is half-way work towards using Bitcoin compatible crypto.

Please review:

https://github.com/da2ce7/opentxs/blob/cryptopp/include/opentxs/core/crypto/OTCryptoPP.hpp
https://github.com/da2ce7/opentxs/blob/cryptopp/src/core/crypto/OTCryptoPP.cpp

Cam.
However this means we have an OpenSSL and CryptoPP and etc override of the Base64 class, It is simple just to leave it with the crypto stuff?  If it isn't related to crypto why do the crypto libs include it?