update paper with results and stats until with Task A, B and C results and datasets

[HamedBabaei]

• Formulations and Task Definitions section fix
• prompt engineering section
• add complete results for Task A
• add complete results for Task B
• add complete results for Task C
• adding datasets for task A
• adding datasets for task B
• adding datasets for task C
• adding evaluation metrics for tasks B and C
• adding LMs descriptions
• start appendixes