Add copyright settings for idea

.idea/copyright/mirai.xml

@@ -0,0 +1,6 @@
+<component name="CopyrightManager">
+  <copyright>
+    <option name="notice" value="Copyright &amp;#36;today.year Mamoe Technologies and contributors.&#10;&#10;此源代码的使用受 GNU AFFERO GENERAL PUBLIC LICENSE version 3 许可证的约束, 可以在以下链接找到该许可证.&#10;Use of this source code is governed by the GNU AGPLv3 license that can be found through the following link.&#10;&#10;https://github.com/mamoe/mirai/blob/master/LICENSE" />
+    <option name="myName" value="mirai" />
+  </copyright>
+</component>

.idea/copyright/profiles_settings.xml

@@ -0,0 +1,7 @@
+<component name="CopyrightManager">
+  <settings>
+    <module2copyright>
+      <element module="CopyrightScope" copyright="mirai" />
+    </module2copyright>
+  </settings>
+</component>

.idea/scopes/CopyrightScope.xml

@@ -0,0 +1,3 @@
+<component name="DependencyValidationManager">
+  <scope name="CopyrightScope" pattern="test[mirai-api-http.mirai-api-http.test]:*..*||src[mirai-api-http.buildSrc.main]:*..*||src[mirai-api-http.mirai-api-http.main]:*..*||src[mirai-api-http.mirai-api-http-spi.main]:*..*" />
+</component>