Add evaluation results for MAIA task

Include MAIA tasks into Evalita tasks

Add the results of the gemma-3-270m model

Add the results for the gemma-3n-E4B-it and Llama-4-Scout-17B-16E-Instruct models

Add standard deviation of accuracy values across prompts

Added results for Fastweb, HuggingFaceH4, and Gemma-2-27B

Add the results of gemma-3-27b-it

Add the gemma-3-27b-it's results

Add the results of the gemma2 model

Add the results of the gemma3 model

Add the results of new assessed models