add scene render system, add proper HDR environments, try load texture from mesh file

Editor/assets/models/m1911/imgui.ini

@@ -0,0 +1,71 @@
+[Window][DockSpace Demo]
+Pos=0,0
+Size=2560,1387
+Collapsed=0
+
+[Window][Debug##Default]
+Pos=55,90
+Size=400,400
+Collapsed=0
+
+[Window][Renderer]
+Pos=2047,1141
+Size=285,134
+Collapsed=0
+
+[Window][Model]
+Pos=1772,24
+Size=788,577
+Collapsed=0
+DockId=0x00000001,0
+
+[Window][Environment]
+Pos=1772,603
+Size=788,784
+Collapsed=0
+DockId=0x00000002,0
+
+[Window][Viewport]
+Pos=421,24
+Size=1349,1363
+Collapsed=0
+DockId=0x00000003,0
+
+[Window][Mesh Debug]
+Pos=2055,471
+Size=505,916
+Collapsed=0
+DockId=0x00000002,1
+
+[Window][ImGui Demo]
+ViewportPos=276,66
+ViewportId=0x080FC883
+Size=1923,1168
+Collapsed=0
+
+[Window][Mesh Hierarchy]
+Pos=0,24
+Size=419,1363
+Collapsed=0
+DockId=0x00000005,1
+
+[Window][Scene Hierarchy]
+Pos=0,24
+Size=419,1363
+Collapsed=0
+DockId=0x00000005,0
+
+[Window][Properties]
+Pos=107,1086
+Size=188,127
+Collapsed=0
+
+[Docking][Data]
+DockSpace       ID=0xFA06BC56 Window=0x4647B76E Pos=0,47 Size=2560,1363 Split=X
+  DockNode      ID=0x00000005 Parent=0xFA06BC56 SizeRef=419,1363 Selected=0x9A68760C
+  DockNode      ID=0x00000006 Parent=0xFA06BC56 SizeRef=2139,1363 Split=X
+    DockNode    ID=0x00000003 Parent=0x00000006 SizeRef=1349,876 CentralNode=1 HiddenTabBar=1 Selected=0x995B0CF8
+    DockNode    ID=0x00000004 Parent=0x00000006 SizeRef=788,876 Split=Y Selected=0x16545DDD
+      DockNode  ID=0x00000001 Parent=0x00000004 SizeRef=705,577 Selected=0x16545DDD
+      DockNode  ID=0x00000002 Parent=0x00000004 SizeRef=705,784 Selected=0xC0BA51F5
+