Update ignored files for csharpier config on rider (#427)

* add csharpier configs

* update readme

* add csharpier as a required plugin on rider

.idea/.idea.server-csharp/.idea/CSharpierPlugin.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="com.intellij.csharpier">
+    <option name="customPath" value="" />
+    <option name="runOnSave" value="true" />
+  </component>
+</project>

.idea/.idea.server-csharp/.idea/codeStyles/codeStyleConfig.xml

@@ -0,0 +1,5 @@
+<component name="ProjectCodeStyleConfiguration">
+  <state>
+    <option name="USE_PER_PROJECT_SETTINGS" value="true" />
+  </state>
+</component>

.idea/.idea.server-csharp/.idea/externalDependencies.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalDependencies">
+    <plugin id="com.intellij.csharpier" />
+  </component>
+</project>

README.md

@@ -33,6 +33,8 @@ This project has been built in [Visual Studio](https://visualstudio.microsoft.co
 Minimum required Visual Studio version is `17.13.5`
 Minimum required Rider version is `2024.3`
 
+[CSharpier](https://csharpier.com/docs/Editors) plugin is requirement for autoformatting. It is available for either of the above IDE's.
+
 You only need one of the above.
 
 ### Initial Setup