Fix compiler errors for 2.16 core/objects bump

Packages/systems.speckle.speckle-unity/Runtime/Converter/Unity/ConverterUnity.Geometry.cs

@@ -357,25 +357,25 @@ namespace Objects.Converter.Unity
             return new Matrix4x4
             {
                 // Left (X -> X)
-                [0, 0] = smatrix.M11,
-                [2, 0] = smatrix.M21,
-                [1, 0] = smatrix.M31,
-                [3, 0] = smatrix.M41,
+                [0, 0] = (float)smatrix.M11,
+                [2, 0] = (float)smatrix.M21,
+                [1, 0] = (float)smatrix.M31,
+                [3, 0] = (float)smatrix.M41,
                 //Up (Z -> Y)
-                [0, 2] = smatrix.M12,
-                [2, 2] = smatrix.M22,
-                [1, 2] = smatrix.M32,
-                [3, 2] = smatrix.M42,
+                [0, 2] = (float)smatrix.M12,
+                [2, 2] = (float)smatrix.M22,
+                [1, 2] = (float)smatrix.M32,
+                [3, 2] = (float)smatrix.M42,
                 //Forwards (Y -> Z)
-                [0, 1] = smatrix.M13,
-                [2, 1] = smatrix.M23,
-                [1, 1] = smatrix.M33,
-                [3, 1] = smatrix.M43,
+                [0, 1] = (float)smatrix.M13,
+                [2, 1] = (float)smatrix.M23,
+                [1, 1] = (float)smatrix.M33,
+                [3, 1] = (float)smatrix.M43,
                 //Translation
                 [0, 3] = (float)(smatrix.M14 * sf),
                 [2, 3] = (float)(smatrix.M24 * sf),
                 [1, 3] = (float)(smatrix.M34 * sf),
-                [3, 3] = smatrix.M44,
+                [3, 3] = (float)smatrix.M44,
             };
         }
 

Packages/systems.speckle.speckle-unity/Runtime/Converter/Unity/ConverterUnity.cs

@@ -202,6 +202,18 @@ namespace Objects.Converter.Unity
             return objects.Select(x => ConvertToNative(x)).ToList();
         }
 
+        public object ConvertToNativeDisplayable(Base @object)
+        {
+            throw new NotImplementedException(
+                $"{nameof(ConvertToNativeDisplayable)} is not implemented by this converter, use {nameof(ConvertToNative)} instead"
+            );
+        }
+
+        public bool CanConvertToNativeDisplayable(Base @object)
+        {
+            throw new NotImplementedException();
+        }
+
         public bool CanConvertToSpeckle(object @object)
         {
             switch (@object)

Packages/systems.speckle.speckle-unity/Runtime/Core/System.DoubleNumerics.dll.meta

@@ -0,0 +1,33 @@
+fileFormatVersion: 2
+guid: a85708f21043b0c458a3a77c0e09e4b8
+PluginImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  iconMap: {}
+  executionOrder: {}
+  defineConstraints: []
+  isPreloaded: 0
+  isOverridable: 1
+  isExplicitlyReferenced: 0
+  validateReferences: 1
+  platformData:
+  - first:
+      Any: 
+    second:
+      enabled: 1
+      settings: {}
+  - first:
+      Editor: Editor
+    second:
+      enabled: 0
+      settings:
+        DefaultValueInitialized: true
+  - first:
+      Windows Store Apps: WindowsStoreApps
+    second:
+      enabled: 0
+      settings:
+        CPU: AnyCPU
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: