fix compiling issues with some version of unity

renamed file

Svelto.Common

@@ -1 +1 @@
-Subproject commit 33e1d93b187a07825fb53f94d537fc66ffa0a819
+Subproject commit 1b2f3cb581a502aa6879b8d6afa4ae83a0fe0391

Svelto.ECS/Core/CheckEntityUtilities.cs

@@ -1,5 +1,6 @@
 #if !DEBUG || PROFILE_SVELTO
 #define DONT_USE
+using System.Diagnostics;
 #endif
 using System;
 using System.Collections.Generic;

Svelto.ECS/Extensions/Unity/DOTS/UECS/IUECSSubmissionEngine.cs → Svelto.ECS/Extensions/Unity/DOTS/UECS/SubmissionEngine.cs

@@ -17,7 +17,6 @@ namespace Svelto.ECS.Extensions.Unity
         }
 
         public    EntityCommandBuffer ECB { get; internal set; }
-        protected EntityManager       EM  => this.EntityManager;
 
         public string name => TypeToString.Name(this);
     }

Svelto.ECS/Extensions/Unity/DOTS/UECS/SveltoUECSEntitiesSubmissionGroup.cs

@@ -1,5 +1,4 @@
 #if UNITY_ECS
-using System.Collections;
 using Svelto.Common;
 using Svelto.DataStructures;
 using Svelto.ECS.Schedulers;

Svelto.ECS/Svelto.ECS.asmdef

@@ -18,6 +18,11 @@
     "autoReferenced": true,
     "defineConstraints": [],
     "versionDefines": [
+        {
+            "name": "Unity",
+            "expression": "2019.3",
+            "define": "UNITY_JOBS"
+        },
         {
             "name": "com.unity.entities",
             "expression": "",
@@ -49,8 +54,13 @@
             "define": "UNITY_NATIVE"
         },
         {
-            "name": "Unity",
-            "expression": "2019.3.0",
+            "name": "com.unity.burst",
+            "expression": "",
+            "define": "UNITY_JOBS"
+        },
+        {
+            "name": "com.sebaslab.svelto.ecs",
+            "expression": "",
             "define": "UNITY_JOBS"
         }
     ],

Svelto.ECS/package.json

@@ -3,13 +3,13 @@
   "category": "Svelto",
   "description": "Svelto ECS C# Lightweight Data Oriented Entity Component System Framework",
   "dependencies": {
-    "com.sebaslab.svelto.common": "3.1.0"
+    "com.sebaslab.svelto.common": "3.1.1"
   },
   "keywords": [
     "svelto"
   ],
   "name": "com.sebaslab.svelto.ecs",
-  "version": "3.1.0",
+  "version": "3.1.1",
   "type": "library",
   "unity": "2019.3"
 }

Svelto.ECS/version.json

@@ -1,3 +1,3 @@
 {
-    "version": "3.1.0"
+    "version": "3.1.1"
 }