Clean-up: remove extra whitespace in ctf-ir/clock.h

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Python bindings: Add UUID accessors to the Clock class

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Documentation fix: add expected types to packet context accessors

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Python bindings: Add packet context accessors

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Python bindings docs: clarify add_event_class comments

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Python bindings: clarify invalid argument type exception

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>