update bullet so it actually works

Moved the addSourceDirectory for physics/Bullet into the Engine/Source/CMakeLists.txt file that way it can actually appear where we expect it to in the solution explorer.

Engine/lib/bullet/examples/OpenGLWindow/premake4.lua

@@ -9,10 +9,14 @@
 		initGlew()
 
 		includedirs {
-		 	
+		 	"../ThirdPartyLibs",
 		 	"../../src",
 		}
-		
+
+        if os.is("Linux") then
+            buildoptions{"-fPIC"}
+        end
+        		
 		--links {
 		--}
 		
@@ -21,9 +25,12 @@
 			"*.h",
 			"OpenGLWindow/*.c",
 			"OpenGLWindow/*.h",
-			"OpenGLWindow/GL/*.h"
+			"OpenGLWindow/GL/*.h",
+			"../ThirdPartyLibs/stb_image/stb_image_write.cpp",
 		}
 
+		
+		
 		if not os.is("Windows") then 
 			excludes {  
 				"Win32OpenGLWindow.cpp",
@@ -41,10 +48,17 @@
 				"X11OpenGLWindows.h"
 			}
 		end
+		if not os.is("MacoSX") then
+			excludes {
+				"MacOpenGLWindow.cpp"
+			}
+		end
 		if os.is("MacOSX") then
 			files
 			{
-					"../OpenGLWindow/MacOpenGLWindow.h",
-					"../OpenGLWindow/MacOpenGLWindow.mm",
+					"MacOpenGLWindow.h",
+					"MacOpenGLWindow.cpp",
+					"MacOpenGLWindowObjC.m",
+					"MacOpenGLWindowObjC.h",
 			} 
 		end