got rid of RandomCardPicker altogether
package naming consistency
replaced foreach with JDK8 stream
code formatting
added constant for max. hand size
added test for manual console input based strategy (phase red)
added libs
naive implementation
fixed System.in stream closing problem. added Game.main() to start game human vs. cpu
mini-step implementation
next test: invalid card values
mini-step implementation
added another test input
also handle invalid character input
added handling of cards not in hand