Many changes, open for more

1) Added PlayerNotFoundException
class(io.github.ocnscrim.scrimmage.utils)
2) Added MIT Licenses to ChatCommands.java, ObserverListener.java, PlayerListener.java, ServerListener.java, SaveLogUtils.java
4) Removed Unused imports
5) Added more fake inventories in observerlistener(dropper needs SportBukkit)
6) fakeChest -> fakeInv
7) Changed @Command annotation to one line, added @Console in PunishCommands.java and started fix in exceptions
8) Added BlockPlace in PlayerListener to setOwner in tracker(@MasterEjay)

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:) For changes tell me