Cloud -> LiteCommands (#63)

In this commit we had removed everything about Cloud, and switched to another command framework called LiteCommands.

Reviewed-by: xiaoACE6716, SNWCreations
Tested-by: huanmeng_qwq

CLOUD_MIGRATE_TO_LITECOMMANDS.md

@@ -0,0 +1,48 @@
+### 从Cloud迁移到LiteCommands
+
+### 注解
+
+| Cloud                  | LiteCommands          |
+|------------------------|-----------------------|
+| @CommandContainer      | @RootCommand          |
+| @CommandMethod("test") | @Command(name="test") |
+| @Argument              | @Arg                  |
+
+### 示例
+#### Cloud
+
+```java
+@CommandContainer
+@CommandPrefix("!")
+@CommandMethod("test")
+public class TestCloudCommand {
+    @CommandMethod("sub1 <parm1>")
+    public void sub1(CommandSender sender, Message message, @Argument("parm1") String parm1) {
+        // ...
+    }
+}
+```
+
+#### LiteCommands
+> Github: [LiteCommands](https://github.com/Rollczi/LiteCommands)
+> 
+> IDEA中安装[LiteCommands](https://plugins.jetbrains.com/plugin/20799-litecommands)插件后，可以自动识别LiteCommands的注解，并能够很好的辅助开发。
+
+```java
+import dev.rollczi.litecommands.annotations.argument.Arg;
+import dev.rollczi.litecommands.annotations.command.Command;
+import dev.rollczi.litecommands.annotations.context.Context;
+import dev.rollczi.litecommands.annotations.execute.Execute;
+import snw.kookbc.impl.command.litecommands.annotations.prefix.Prefix;
+
+@Command(name = "test")
+@Prefix("!")
+public class TestLiteCommand {
+    @Execute(name = "sub1")
+    public void sub1(@Context CommandSender sender,
+                     @Context Message message,
+                     @Arg("parm1") String parm1) {
+        // ...
+    }
+}
+```

pom.xml

@@ -182,6 +182,10 @@
             <id>architectury</id>
             <url>https://maven.architectury.dev/</url>
         </repository>
+        <repository>
+            <id>panda-repo</id>
+            <url>https://repo.panda-lang.org/releases</url>
+        </repository>
     </repositories>
 
     <dependencies>
@@ -296,16 +300,11 @@
             <version>${mixin.version}</version>
         </dependency>
 
-        <!--Command - Cloud-->
-        <dependency>
-            <groupId>cloud.commandframework</groupId>
-            <artifactId>cloud-core</artifactId>
-            <version>1.8.3</version>
-        </dependency>
+        <!--Command - litecommands-->
         <dependency>
-            <groupId>cloud.commandframework</groupId>
-            <artifactId>cloud-annotations</artifactId>
-            <version>1.8.3</version>
+            <groupId>dev.rollczi</groupId>
+            <artifactId>litecommands-framework</artifactId>
+            <version>3.3.4</version>
         </dependency>
 
         <dependency>