added condition as a handle for tapering in polarization functions

[kaushikush]

This pull request adds condition as one of the input arguments in get_imr_esigma_waveform() and get_inspiral_esigma_waveform(). This is consistent with the condition argument in the gwsignal implementation of EsigmaHM.

Setting condition==1 means the tapering is on, andcondition==0 means tapering is off. The helper function that does the tapering, is located in condition.py.

Please note that this PR implements conditioning only for polarizations, not for spherical harmonic modes.

[Copilot]

Pull request overview

This PR adds an on/off condition flag to ESIGMA polarization waveform generators to optionally apply start-time tapering, aligning the API with gwsignal’s EsigmaHM conditioning behavior (polarizations only; not modes).

Changes:

• Add condition parameter to get_inspiral_esigma_waveform() and get_imr_esigma_waveform().
• Apply polarization tapering via a new helper (apply_taper_both_pols) when condition==1.
• Introduce new esigmapy/condition.py with taper width estimation and taper application utilities.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 6 comments.

File	Description
esigmapy/generator.py	Adds condition arg and conditionally applies tapering to returned polarizations.
esigmapy/condition.py	New module implementing taper-width computation and taper application helpers.

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