[REF] move models to abstract models

__manifest__.py

models/__init__.py

models/financial_contract.py

models/financial_contract_mixin.py

models/financial_contract_suspensive_condition.py

models/financial_funding.py

models/financial_product_category.py

models/financial_product_suspensive_condition.py

models/financial_product_template.py

models/financial_suspensive_condition.py

models/res_company.py

security/ir.model.access.csv

security/security_rules.xml

views/financial_contract.xml

views/financial_product_category.xml

views/financial_product_template.xml

views/menus.xml

views/res_partner.xml