Update gitignore for Rider, fix typos

I use Rider as my IDE and when working with Unreal projects it installs a plugin that enable its unique integration. We don't want that being uploaded to the repo so it gets ignored. In addition, The project module has a typo, this commit fixes that

Source/CogSample/CogSampleLogCategories.cpp

@@ -23,7 +23,7 @@ DEFINE_LOG_CATEGORY(LogCogTargetAcquisition);
 
 namespace CogSampleLog
 {
-    void RegiterAllLogCategories()
+    void RegisterAllLogCategories()
     {
 #if ENABLE_COG
         FCogDebugLog::AddLogCategory(LogCogAlways, "Always", "Debug Category that is always active", false);