* Implemented more granular registration of observers with HashMap;
Key: Event, Value: List of Observers registered for the event;
* Edited constructors and super calls of all EventEmitter extenders
* Edited constructor calls in App.java
* Edited EventEmitterTest
* Added new white walkers event, scout emits at wednesday, varys observes and emits at saturday
* Added white walkers event to KingsHandTest.java
* Varys now passes events
* Corrected some indentation levels and added curly braces to if statements
* Corrected some styling
* Switched lines in App.java,
added javadoc to registerObserver
* Fixed some indents, added param comments
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