[RVC-Boss] Improved Spanish phonetics for English backend

Hey RVC-Boss! Greetings from Argentina! I developed a custom phonetic engine for Spanish within the English backend. It fixes issues with the 'RR', 'Ñ', silent 'H', and adds automatic accentuation for "tildes". It's a great "trick" for Spanish speakers. I tried it successfully using the V2 model: ``` # ============================================================================== # SPANISH-NATIVE PHONETIC ENGINE FOR GPT-SOVITS (English Backend) # ============================================================================== # WHAT IS THIS? # This script replaces the 'english.py' logic to allow the model to speak # near-perfect SPANISH while using the English engine. # # MANDATORY CONFIGURATION: # 1. REFERENCE AUDIO: In Spanish (English might work for SoVITS too). # 2. WEBUI / API INTERFACE: Always select "English" (or "en"). # 3. .LIST FILE: Language tags must be "en" for Spanish text. # Example: path/to/audio.wav|name|en|Texto en español aquí. # # INCLUDED IMPROVEMENTS: # - Autom