add initial pybullet module, using the shared memory API

(for now, start the example browser in 'physics server',
then compile using premake --python option,
then run python in the bin folder (so it finds pybullet.so)
and run the test.py script in examples/pybullet folder.
The robotics shared memory C API is very suitable for this.

build3/premake4.lua

@@ -73,6 +73,14 @@
 		description = "Enable Lua scipting support in Example Browser"
 	}
 
+	newoption
+        {
+                trigger = "python",
+                description = "Enable Python scripting (experimental, use Physics Server in Example Browser). "
+        }
+
+
+
 	newoption {
 		trigger     = "targetdir",
 		value       = "path such as ../bin",
@@ -192,6 +200,9 @@
 		if _OPTIONS["lua"] then
 		   include "../examples/ThirdPartyLibs/lua-5.2.3"
 		end
+		if _OPTIONS["python"] then
+		  include "../examples/pybullet"
+		end
 
 		if not _OPTIONS["no-test"] then
 			include "../test/SharedMemory"