Unity Support downloads statistics

Adds support for the Unity engine.

• Code completion of event function declarations in a class.
• Use Generate Code to create event functions, with parameters, or start typing for automatic completion.
• Highlights Unity event functions and serializable fields and marks as implicitly used by Unity.
• Supports Unity API 5.0 - 2020.1, plus undocumented functions.
• Inspections, Quick Fixes and Context Actions for Unity specific issues, with documented explanations.
• Performance indicators to avoid known code patterns that affect performance.
• Parse class and method usage from scene, prefab and assets.
• Support for ShaderLab and Assembly Definition files.
• Automatically connect debugger to Unity editor.
• Lists and debugs external players.
• Extra Unity data in debugger views.
• Play/pause/step directly from Rider.
• View Unity console in Rider, with parsed stack traces and text filter.
• Run Unity editor tests directly from Rider.
• Unity Explorer to view project as shown in Unity's Assets view, with Packages.
• Navigate to external Unity documentation.
• Correctly updates .meta files.
• Code completion, rename and find usages for "magic strings" in method calls.
• Automatically adds FormerlySerializedAs attribute when renaming fields.
• Automatically sets Unity projects to C# 4 or C# 6. No more suggestions for features that won't compile!
• Highlights UnityEngine.Color and Color32. Edit via colour palette quick fix.
• Unity specific file and live templates.
• And much more!