Warning when dates mismatch between contract line dates and project task dates

Summary

Missing user warning and potential Error to be shown when effective date range of project task is not aligned with the dates of contract line

Content

Billing contracts have an Effective Date range and the Contract lines as well have their own Effective Date Range. Ideally, when associating the project to the line a user UI WARNING is raised when the associated task effective start date is smaller than the contract line effective start date or when the associated task effective end date is bigger than the contract line effective end date and the Task is billable and the revenue or billing plan is cost-based like Percent Spent or Bill rate based.