add "usage" to all commands

common/src/main/java/com/dfsek/terra/commands/AddonsCommand.java

@@ -2,9 +2,13 @@ package com.dfsek.terra.commands;
 
 import com.dfsek.terra.api.TerraPlugin;
 import com.dfsek.terra.api.command.CommandTemplate;
+import com.dfsek.terra.api.command.annotation.Command;
 import com.dfsek.terra.api.injection.annotations.Inject;
 import com.dfsek.terra.api.platform.CommandSender;
 
+@Command(
+        usage = "/terra addons"
+)
 public class AddonsCommand implements CommandTemplate {
     @Inject
     private TerraPlugin main;

common/src/main/java/com/dfsek/terra/commands/BiomeCommand.java

@@ -27,7 +27,8 @@ import com.dfsek.terra.config.lang.LangUtil;
                         aliases = {"l"},
                         clazz = BiomeLocateCommand.class
                 )
-        }
+        },
+        usage = "/terra biome"
 )
 @WorldCommand
 @PlayerCommand

common/src/main/java/com/dfsek/terra/commands/GetBlockCommand.java

@@ -13,7 +13,9 @@ import com.dfsek.terra.api.platform.entity.Player;
 @WorldCommand
 @DebugCommand
 @PlayerCommand
-@Command
+@Command(
+        usage = "/terra getblock"
+)
 public class GetBlockCommand implements CommandTemplate {
     @Inject
     private TerraPlugin main;

common/src/main/java/com/dfsek/terra/commands/PacksCommand.java

@@ -10,7 +10,9 @@ import com.dfsek.terra.config.lang.LangUtil;
 import com.dfsek.terra.config.pack.ConfigPack;
 import com.dfsek.terra.config.pack.ConfigPackTemplate;
 
-@Command
+@Command(
+        usage = "/terra packs"
+)
 public class PacksCommand implements CommandTemplate {
     @Inject
     private TerraPlugin main;

common/src/main/java/com/dfsek/terra/commands/ReloadCommand.java

@@ -7,7 +7,9 @@ import com.dfsek.terra.api.injection.annotations.Inject;
 import com.dfsek.terra.api.platform.CommandSender;
 import com.dfsek.terra.config.lang.LangUtil;
 
-@Command()
+@Command(
+        usage = "/terra reload"
+)
 public class ReloadCommand implements CommandTemplate {
     @Inject
     private TerraPlugin main;

common/src/main/java/com/dfsek/terra/commands/StructureCommand.java

@@ -25,7 +25,8 @@ import com.dfsek.terra.commands.structure.StructureLoadCommand;
                         value = "spawn",
                         aliases = "s"
                 )
-        }
+        },
+        usage = "/te structure"
 )
 public class StructureCommand implements CommandTemplate {
     @Override

common/src/main/java/com/dfsek/terra/commands/VersionCommand.java

@@ -7,7 +7,9 @@ import com.dfsek.terra.api.injection.annotations.Inject;
 import com.dfsek.terra.api.platform.CommandSender;
 import com.dfsek.terra.config.lang.LangUtil;
 
-@Command
+@Command(
+        usage = "/terra version"
+)
 public class VersionCommand implements CommandTemplate {
     @Inject
     private TerraPlugin main;

common/src/main/java/com/dfsek/terra/commands/structure/SpawnCommand.java

@@ -23,7 +23,9 @@ import java.util.HashMap;
 @DebugCommand
 @PlayerCommand
 @WorldCommand
-@Command
+@Command(
+        usage = "/terra spawn"
+)
 public class SpawnCommand implements CommandTemplate {
     @Inject
     private TerraPlugin main;

common/src/main/java/com/dfsek/terra/commands/structure/StructureExportCommand.java

@@ -5,6 +5,9 @@ import com.dfsek.terra.api.command.CommandTemplate;
 import com.dfsek.terra.api.command.annotation.Argument;
 import com.dfsek.terra.api.command.annotation.Command;
 import com.dfsek.terra.api.command.annotation.inject.ArgumentTarget;
+import com.dfsek.terra.api.command.annotation.type.DebugCommand;
+import com.dfsek.terra.api.command.annotation.type.PlayerCommand;
+import com.dfsek.terra.api.command.annotation.type.WorldCommand;
 import com.dfsek.terra.api.injection.annotations.Inject;
 import com.dfsek.terra.api.math.vector.Location;
 import com.dfsek.terra.api.platform.CommandSender;
@@ -20,12 +23,16 @@ import java.io.File;
 import java.io.FileWriter;
 import java.io.IOException;
 
+@PlayerCommand
+@WorldCommand
+@DebugCommand
 @Command(
         arguments = {
                 @Argument(
                         value = "id"
                 )
-        }
+        },
+        usage = "/terra structure export <ID>"
 )
 public class StructureExportCommand implements CommandTemplate {
     @Inject

common/src/main/java/com/dfsek/terra/commands/structure/StructureLoadCommand.java

@@ -45,7 +45,8 @@ import java.util.concurrent.ThreadLocalRandom;
                 @Switch(value = "chunk",
                         aliases = "c"
                 )
-        }
+        },
+        usage = "/terra structure load [ROTATION] [-c]"
 )
 public class StructureLoadCommand implements CommandTemplate {
     @ArgumentTarget("rotation")