Add deprecation warning to module documentation

src/simulation/dynamics/facetSRPDynamicEffector/facetSRPDynamicEffector.rst

@@ -6,6 +6,10 @@ point :math:`B`. The module can be configured for either a static spacecraft or
 articulating facets. For example, a spacecraft with two articulating solar arrays can be configured using 4
 articulating facets. The unit test for this module shows how to set up this particular configuration.
 
+.. warning::
+    The module variables ``numFacets`` and ``numArticulatedFacets`` will be moved to private module variables on
+    Dec 6 2025. Setters and getters are now added to access these variables.
+
 Message Connection Descriptions
 -------------------------------
 The following table lists all the module input and output messages.