Hera-sim

===================

Added
-----
- ``adjustment.interpolate_to_reference`` now supports interpolating in time when
there is a phase wrap in LST.

Changed
-------
- Some logical statements in ``adjustment.interpolate_to_reference`` were changed
to use binary operators on logical arrays instead of e.g. ``np.logical_or``.

===================

Added
-----
- ``_extract_kwargs`` attribute added to the ``SimulationComponent`` class. This
attribute is used by the ``Simulator`` to determine which optional parameters
should actually be extracted from the data.
- ``antpair`` optional parameter added to the ``ThermalNoise`` class. This is
used to determine whether to simulate noise via the radiometer equation (as is
appropriate for a cross-correlation) or to just add a bias from the receiver
temperature (which is our proxy for what should happen to an auto-correlation).

Fixed
-----
- The ``Simulator`` class now correctly uses the auto-correlations to simulate
noise for the cross-correlations.

===================

Fixed
-----
- Using the ``normalize_beams`` option is now possible with the ``from_config``
class method.

===================

Added
-----
- ``normalize_beams`` option in ``ModelData`` class. Setting this parameter to
``True`` enforces peak-normalization on all of the beams used in the simulation.
The default behavior is to not peak-normalize the beams.

===================

Added
-----
- ``OverAirCrossCoupling`` now has a parameter ``amp_norm``. This lets the user
decide at what distance from the receiverator the gain of the emitted signal
is equal to the base amplitude.

Fixed
-----
- ``OverAirCrossCoupling`` now only simulates the systematic for cross-correlations.
- ``ReflectionSpectrum`` class had its ``is_multiplicative`` attribute set to True.

===================

Added
-----
- New ``ReflectionSpectrum`` class to generate multiple reflections over a
specified range of delays/amplitudes.

Fixed
-----
- Corrected some parameter initializations in ``sigchain`` module.