add DeepMimic helper utils

examples/pybullet/gym/pybullet_utils/examples/testlog.py

@@ -0,0 +1,9 @@
+from pybullet_utils.logger import Logger
+logger = Logger()
+logger.configure_output_file("e:/mylog.txt")
+for i in range (10):
+	logger.log_tabular("Iteration", 1)
+Logger.print2("hello world")
+
+logger.print_tabular()
+logger.dump_tabular()