【功能新增】IoT：增加插件管理功能，包含插件实例和类型的定义及相关配置

yudao-module-iot/yudao-module-iot-plugin/pom.xml

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>yudao-module-iot</artifactId>
+        <groupId>cn.iocoder.boot</groupId>
+        <version>${revision}</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>yudao-module-iot-plugin</artifactId>
+    <packaging>jar</packaging>
+
+    <name>${project.artifactId}</name>
+    <description>
+        物联网 模块 - 插件
+    </description>
+
+    <dependencies>
+        <dependency>
+            <groupId>cn.iocoder.boot</groupId>
+            <artifactId>yudao-common</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.pf4j</groupId>
+            <artifactId>pf4j-spring</artifactId>
+        </dependency>
+    </dependencies>
+
+</project>

yudao-module-iot/yudao-module-iot-plugin/src/main/java/cn/iocoder/yudao/module/iot/plugin/package-info.java

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+/**
+ * 占位
+ *
+ * TODO 芋艿：后续删除
+ */
+package cn.iocoder.yudao.module.iot.plugin;