Demo update and start counting tests times

-Fixed performance issue with multithreading and rendering
-start making better shaders (by using many macros)
-speed up rendeing when maximum objects count was reached
-remove map rendering form Snake demo, and render entities by themself
-start adding depth and color rendering parameters
-added properly names to jobs (for debugging purpses)
-starts adding multithreaded rendering
-added some math to vectors
-changes execute() to willExecute(). Probably should have different name.

demos/source/game_core/job_updater.d

@@ -63,6 +63,7 @@ struct ECSJobUpdater
         JobData[1024] jobs;
         JobCaller[1024] callers;
         uint count = 0;
+        string name;
 
         void dependantOn(Group* dependency)
         {
@@ -89,7 +90,7 @@ struct ECSJobUpdater
         void add(JobCaller caller)
         {
             callers[count] = caller;
-            jobs[count] = JobData(&callers[count].callJob,"hmm");
+            jobs[count] = JobData(&callers[count].callJob,name);
             count++;
         }
     }
@@ -216,6 +217,8 @@ struct ECSJobUpdater
             return;
         }
 
+        jobs[group.id].name = cast(string)group.caller.system.name;
+
         foreach(ref job;group.jobs)
         {
             uint index = 0;
@@ -233,7 +236,7 @@ struct ECSJobUpdater
 
         foreach(dep;group.dependencies)
         {
-            if(jobs[dep.id].count && dep.caller.system.execute && dep.caller.system.enabled)jobs[group.id].dependantOn(&jobs[dep.id]);
+            if(jobs[dep.id].count && dep.caller.system.willExecute && dep.caller.system.enabled)jobs[group.id].dependantOn(&jobs[dep.id]);
             else deps--;
         }