[14.0][MIG]crm_lead_product: Migration to 14.0

[GuillemCForgeFlow]

Migration to v14.0:

• Renamed Revenue fields (Planned and Expected to Expected and Prorated, respectively) in the crm.lead.line model to match the current labels in standard Odoo: https://github.com/odoo/odoo/blob/17.0/addons/crm/models/crm_lead.py#L152-L153. Also, changed the fields to be Monetary, just like in Odoo standard.
• Added migration script to handle migration for planned_revenue and expected_revenue fields.
• Adapted report to match with the new fields.
• Improved code consistency and readability in different places
• Renamed view names, for better understanding
• Fixed licenses in files

cc @ForgeFlow

[github-actions[bot]]

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