Add color API for Teams

By: md_5 <git@md-5.net>

paper-server/nms-patches/EnumChatFormat.patch

@@ -0,0 +1,11 @@
+--- a/net/minecraft/server/EnumChatFormat.java
++++ b/net/minecraft/server/EnumChatFormat.java
+@@ -16,7 +16,7 @@
+     private static final Map<String, EnumChatFormat> w = Maps.newHashMap();
+     private static final Pattern x = Pattern.compile("(?i)\u00a7[0-9A-FK-OR]");
+     private final String y;
+-    private final char z;
++    public final char z; // PAIL
+     private final boolean A;
+     private final String B;
+     private final int C;