Bitwise/Arithmetic API: Suppress intentional UNUSED_PARAMETER/unused warnings (library API stability)

[sydneyrenee]

Add @Suppress("UNUSED_PARAMETER") or underscore params where kept for parity/extensibility; no behavior change. Files: ai/solace/zlib/bitwise/**

[sydneyrenee]

Implemented targeted @file:Suppress for UNUSED_PARAMETER/unused in BitwiseOps.kt, ArithmeticBitwiseOps.kt, and BitShiftEngine.kt. No behavioral changes; build passes with KMP native/JS focus (no JVM target). This resolves the intentional warning noise per #63. Closing as fixed.

[sydneyrenee]

Fixed by adding targeted @file:Suppress for UNUSED_PARAMETER/unused in BitwiseOps, ArithmeticBitwiseOps, and BitShiftEngine. No behavioral changes; build passes.