Minor features and bug fixes

• Fixed a time formatting error in the helpdesk calendar that would display afternoon times as early in the morning.
• Added a feature for opening and closing previous periods on the agreement payment plan.
• Added a title and tags field to customer contacts.
• Added a feature to copy orders.
• In Sales, the fields for selecting users on deals and customers now only display Sales users.
• Added price in for asset accessories and added the article number for both accessories and assets on the deal details page.
• Improved budget page when editing rows, so that budget is no longer automatically recalculated while editing.
• Added a dashboard for tasks to the company dashboard page.