18.0 add contract line defer

[tobiaszehntner]

Defer Contract Lines to avoid invoicing while start date unknown

Enable to defer contract line's invoicing. If a contract line start date is not known, it can be deferred. It will not be invoiced until manually activated.

• Based on [18.0][IMP] contract: hook for line is invoiceable #1341
• contract_line_defer: module to defer contract lines
• product_contract_line_defer: bridge module for product_contract
• contract_line_defer_successor: bridge module for contract_line_successor

[acsonefho]

Only minor stuff!
Really good job 💪

[acsonefho]

Make sense for OCA module?

[tobiaszehntner]

Makes sense for a bridge module. If both contract_line_defer and contract_line_successor are installed, this module should be installed to make sure everything works properly.

From Odoo docs:

auto_install (bool or list(str), default: False)
If True, this module will automatically be installed if all of its dependencies are installed.

It is generally used for “link modules” implementing synergetic integration between two otherwise independent modules.