Dump config file

Add functionality to dump config file when calling a ConfigCommand

Fixes #61 (closed)

bob/extension/data/test_dump_config.py

+'''Configuration file automatically generated at 08/07/2018
+cli test
+
+Test command
+
+Examples!'''
+
+# test = /my/path/test.txt
+'''Required parameter: test (-t, --test)
+Path leading to test blablabla'''
+
+# verbose = 0
+'''Optional parameter: verbose (-v, --verbose) [default: 0]
+Increase the verbosity level from 0 (only error messages) to 1 (warnings), 2 (log messages), 3 (debug information) by adding the --verbose option as often as desired (e.g. '-vvv' for debug).'''