Add Rider project support and ignore Rider files.

.gitignore

@@ -1,14 +1,19 @@
-/[Ll]ibrary/
-/[Tt]emp/
-/[Oo]bj/
-/[Bb]uild/
-/[Bb]uilds/
-/Logs/
-/Assets/AssetStoreTools*
+[Ll]ibrary/
+[Tt]emp/
+[Oo]bj/
+[Bb]uild/
+[Bb]uilds/
+Assets/AssetStoreTools*
+**/.idea/
 
-# Autogenerated VS/MD solution and project files
+# Visual Studio cache directory
+.vs/
+
+# Autogenerated VS/MD/Consulo solution and project files
 ExportedObj/
+.consulo/
 *.csproj
+*.csproj.meta
 *.unityproj
 *.sln
 *.suo
@@ -18,23 +23,12 @@ ExportedObj/
 *.pidb
 *.booproj
 *.svd
-**/*.csproj.user
-**/*.suo
-**/.vs
-**/*.vcxproj.user
-**/*.sdf
-**/*.opensdf
-**/*.VC.db
-**/*.VC.opendb
-**/*.sln.DotSettings.user
-**/*.userprefs
-**/project.lock.json
-**/*.gen.csproj
-**/*.gen.sln
-**/.vscode
+*.pdb
+*.opendb
 
 # Unity3D generated meta files
 *.pidb.meta
+*.pdb.meta
 
 # Unity3D Generated File On Crash Reports
 sysinfo.txt
@@ -42,55 +36,13 @@ sysinfo.txt
 # Builds
 *.apk
 *.unitypackage
+Projects/PublishAll/Logs
+Projects/AllPackages/Logs
+**/Logs
 
-# =========================
-# Operating System Files
-# =========================
-
-# OSX
-# =========================
-
-.DS_Store
-.AppleDouble
-.LSOverride
-
-# Thumbnails
-._*
-
-# Files that might appear in the root of a volume
-.DocumentRevisions-V100
-.fseventsd
-.Spotlight-V100
-.TemporaryItems
-.Trashes
-.VolumeIcon.icns
-
-# Directories potentially created on remote AFP share
-.AppleDB
-.AppleDesktop
-Network Trash Folder
-Temporary Items
-.apdisk
-
-# Windows
-# =========================
-
-# Windows image file caches
-Thumbs.db
-ehthumbs.db
-
-# Folder config file
-Desktop.ini
-
-# Recycle Bin used on file shares
-$RECYCLE.BIN/
-
-# Windows Installer files
-*.cab
-*.msi
-*.msm
-*.msp
-
-# Windows shortcuts
-*.lnk
-
+EntityCache
+EntityCache.meta
+Projects/Hybrid/UserSettings
+StreamingAssets.meta
+SceneDependencyCache.meta
+SceneDependencyCache/

Packages/manifest.json

@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "com.unity.ide.rider": "1.2.1",
     "com.unity.ide.visualstudio": "2.0.0",
     "com.unity.textmeshpro": "3.0.0-preview.1",
     "com.unity.modules.ai": "1.0.0",