Add Assimp for Linux

Source/Platforms/Linux/Binaries/ThirdParty/x64/libassimp.so

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:78f0f338fb63e7524c5e9bc6effcbd8664be5b0ad80f8bcd84ebeb455fa865e8
+size 122353944

Source/ThirdParty/assimp/assimp.Build.cs

@@ -31,6 +31,9 @@ public class assimp : DepsModule
             options.DependencyFiles.Add(Path.Combine(depsRoot, "assimp-vc140-md.dll"));
             options.DelayLoadLibraries.Add("assimp-vc140-md.dll");
             break;
+        case TargetPlatform.Linux:
+            options.DependencyFiles.Add(Path.Combine(depsRoot, "libassimp.so"));
+            break;
         default: throw new InvalidPlatformException(options.Platform.Target);
         }
     }

Source/Tools/Flax.Build/Deps/Dependencies/Assimp.cs

@@ -24,6 +24,11 @@ namespace Flax.Deps.Dependencies
                     {
                         TargetPlatform.Windows,
                     };
+                case TargetPlatform.Linux:
+                    return new[]
+                    {
+                        TargetPlatform.Linux,
+                    };
                 default: return new TargetPlatform[0];
                 }
             }
@@ -71,8 +76,8 @@ namespace Flax.Deps.Dependencies
                     RunCmake(root, TargetPlatform.Linux, TargetArchitecture.x64);
                     Utilities.Run("make", null, null, root, Utilities.RunOptions.None);
                     var depsFolder = GetThirdPartyFolder(options, TargetPlatform.Linux, TargetArchitecture.x64);
-                    // TODO: copy binaries
-                    throw new NotImplementedException("TODO: building Assimp for Linux");
+                    Utilities.FileCopy(Path.Combine(root, "lib", "libassimp.so"), Path.Combine(depsFolder, "libassimp.so"));
+                    break;
                 }
                 }
             }