[#1328] Added wind environment modules

[carlo98]

• Tickets addressed: Issue Wind velocity modules #1328
• Review: By commit
• Merge strategy: Merge (no squash)

Description

Implements the wind environment module infrastructure requested in issue #1328.

Two modules are introduced:

WindBase — abstract base class that handles all shared operations for atmospheric wind models:

• Reads one spacecraft state (scStateInMsg) and one planet SPICE ephemeris (planetPosInMsg) per instance.
• Computes r_BP_N = r_BN_N - r_PN_N at every time step, handling simulations where the planet is not at the inertial origin.
• Derives planetOmega_N automatically from J20002Pfix and J20002Pfix_dot when SPICE provides orientation derivatives; falls back to a subclass-supplied value when the derivative is zero.
• Maintains an epochDateTime structure for time-dependent empirical models, populated from the optional epochInMsg or via the customSetEpochFromVariable() method.
• Writes a single windOutMsg per update.

CorotatingAtmosphereWindModel computes

v_wind_N = planetOmega_N x r_BP_N

Defaults to Earth's sidereal rotation rate about the inertial Z-axis (OMEGA_EARTH). The rotation rate can be overridden via setPlanetOmega_N() or automatically from SPICE DCM derivatives managed by WindBase.

Verification

Unit tests added in _UnitTest/test_corotatingAtmosphereWindModel.py:

• Parametrised correctness test: v_wind_N = omega x r_BP_N for all combinations of zero/non-zero planet position and manual/default rotation rate.
• Default omega equals OMEGA_EARTH.
• setPlanetOmega_N / getPlanetOmega_N.
• Reset() raises when planetPosInMsg is not linked.
• Reset() raises when scStateInMsg is not linked.
• planetOmega_N is derived from J20002Pfix_dot when non-zero.
• planetOmega_N derived from DCM combined with non-zero planet position.
• Connecting epochInMsg does not break Reset() or the wind output.
• windOutMsg is zeroed when input messages are linked but not yet written.

Documentation

• windBase.rst added.
• corotatingAtmosphereWindModel.rst added.
• Release snippet: docs/source/Support/ReleaseNotes/1328-windBase_corotatingAtmosphereWindModel.rst.
• Reviewers should verify equation formatting renders correctly in the built docs and that all cross-references resolve.

Future work

• Additional wind models can be implemented as WindBase subclasses, reusing all shared infrastructure.
• Drag Dynamic Effectors should be updated to consume this message.

[carlo98]

@juan-g-bonilla @schaubh
New module, I cannot add reviewers.

[carlo98]

This is the idea