netstandard2.0 MoonTools.Structs MoonTools.Structs 3.0.1 Evan Hemsley Moonside Games MoonTools Core Structs Evan Hemsley 2020 .NET Standard utility structs for game development true MoonTools.Structs https://gitea.moonside.games/MoonsideGames/MoonTools.Structs LGPL-3.0-only