Implement stacking prefixes - closes #60

sponge/src/main/java/me/lucko/luckperms/sponge/SpongeConfig.java

@@ -22,6 +22,7 @@
 
 package me.lucko.luckperms.sponge;
 
+import lombok.Getter;
 import lombok.RequiredArgsConstructor;
 
 import com.google.common.base.Splitter;
@@ -45,7 +46,10 @@ import java.util.stream.Collectors;
 
 @RequiredArgsConstructor
 public class SpongeConfig extends AbstractConfiguration {
+
+    @Getter
     private final LPSpongePlugin plugin;
+
     private ConfigurationNode root;
 
     @SuppressWarnings("ResultOfMethodCallIgnored")

sponge/src/main/resources/luckperms.conf

@@ -84,6 +84,43 @@ group-weight {
 
 
 
+# +------------------------------------------------------------------------+ #
+# |                      Meta Formatting & Stacking                        | #
+# +------------------------------------------------------------------------+ #
+
+# Allows you to setup prefix/suffix stacking options.
+#
+# Available formats:
+# - highest
+# - lowest
+# - highest_own
+# - lowest_own
+# - highest_on_track_<track>
+# - lowest_on_track_<track>
+#
+# Each element is added in the order listed.
+meta-formatting {
+  prefix {
+    format = [
+      "highest"
+    ]
+    start-spacer=""
+    middle-spacer=" "
+    end-spacer=""
+  }
+  suffix {
+    format = [
+      "highest"
+    ]
+    start-spacer=""
+    middle-spacer=" "
+    end-spacer=""
+  }
+}
+
+
+
+
 # +------------------------------------------------------------------------+ #
 # |                               Storage                                  | #
 # +------------------------------------------------------------------------+ #