bin: add disabled test documenting locked-state and base-time problems
Submitted by Stian Selnes
The added test describes a problem with locked-state and base-time. Currently
the test fails with:
'123456789' (123456789) is not equal to 'gst_element_get_base_time (identity)' (0).
The consequence is that the identity element will never get a base-time even when
it later is set to playing.