Working copy - using external implementations for keygen and feistel
Decryption/encryption working - Refactored some code
Merge remote-tracking branch 'origin/feature-des-decrypt'

Conflicts:
	src/main/java/cryptogen/CryptoGen.java
	src/main/java/cryptogen/DesEncryption.java
	src/main/java/cryptogen/Feistel.java
	src/main/java/cryptogen/KeyCalculator.java
	src/main/java/helpers/ByteHelper.java
Use java 1.8
File select for Stenagography and name changes for des, maybe even do a better description for names...
Fix padding error issue in master branch