• added extensions for RSAPublicKey and RSAPrivateKey to export them to PEM format

• added RSAKeyTools abstract class to provide common methods to load RSAPublicKey and RSAPrivateKey from PEM format

• added FileMode to SecureFile writer to support appending to files

• removed NoEncryption abstract class

• now using encryptMethod getter in IByteDataEncrypter and IByteDataDecrypter to find its method

• added an assertion to SecureFile constructor to check encryptMethod of encrypter and decrypter to check they are from same type

• Removed BlowFish encryption system due to a bug causes some data padded with 0x00 at end.
• Added a method to IByteDataEncrypter to alternate the headers with encrypt method.

• currently none of the encryption systems in this source use it. you need to extend or create an encryption method to use it.

• Updated lint rules

• added more documenting

• moved encrypt/decrypt stream methods outside of the IByteDataEncrypter/Decrypter interfaces. they shouldn't be overridable.

• added a SecureFile class that write/read to/from encrypted files.

• Initial version.