new: added ``complete_with_zeroes`` option to ``strptime`` to allow defaulting unspecified time data with zeroes.
chg: doc: some rephrasing in docs and missing formatting stuff. @minor
fix: removed unwanted shebang line. @minor
fix: removed obsolete code. @minor
new: dev: renamed all ``utils`` function and changed there API to get coherent names and hopefully having easier names to understand and memorise @api
new: added ``.from_string()`` method to ``sact.epoch.Time``, which tries to be clever by trying to parse your string with a list of predefined time formats.
new: support for ``hint_src_tz`` argument in ``sact.epoch.Time.from_datetime()`` when creating ``Time`` instances from naive datetimes.
chg: doc: slight rephrasing of some docstring and removal of obsolete ones. @minor
fix: doc: doc was not up to date about API changes from ``iso_local`` to ``local.iso``.
new: for coherence, added ``.tt`` and ``.ts`` property to ``sact.epoch.Time`` instances to get timetuple and timestamp.
new: ``sact.epoch.Time`` can now be instanciated directly from a string, trying predefined format and even using ``dateutil`` to the rescue.

Note that ``dateutil`` can parse timezone information but ``strptime`` can't, so
``strptime`` formats are tried only if you provide a ``hint_src_tz``.