Make console work on Windows again. Fixes BUKKIT-4956

Something the log4j ConsoleAppender does makes the console work correctly
on Windows. After trying to pull pieces of it out and run them manually
I decided to just put the appender back. We now once again start with the
ConsoleAppender then remove it immediately after starting.

By: Travis Watkins <amaranth@ubuntu.com>

paper-server/src/main/resources/log4j2.xml

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Configuration status="WARN" packages="net.minecraft,com.mojang">
     <Appenders>
+        <Console name="WINDOWS_COMPAT" target="SYSTEM_OUT"></Console>
         <Queue name="TerminalConsole">
             <PatternLayout pattern="[%d{HH:mm:ss} %level]: %msg%n" />
         </Queue>
@@ -17,6 +18,7 @@
             <filters>
                 <MarkerFilter marker="NETWORK_PACKETS" onMatch="DENY" onMismatch="NEUTRAL" />
             </filters>
+            <AppenderRef ref="WINDOWS_COMPAT"/>
             <AppenderRef ref="File"/>
             <AppenderRef ref="TerminalConsole"/>
         </Root>