Ability to change price and fund distribution information and reopen order

Overview: In some situations payment information needs to be edited, and closing the PO to create a new one would not be ideal.

approach:
Editing order cost information when previously opened and reopening

1. Allowing user to set order to pending edit cost info and 'reopen' order, will allow them to trigger the order to be resent to the vendor.
   1. When order is set back to pending all initial encumbrance value(s) are set to 0
   2. When cost information is changed Fund distributions must be updated
   3. All initial encumbrance values will be updated when order is reopened

Note: If Fund distributions are removed entirely their related encumbrances will be released. The source of the transaction and hyperlink should be preserved.

Acceptance criteria:
May not require frontend changes_

1. Given user is editing previously open order
2. When changing cost information
3. Then user must update fund distributions before saving
4. AND when reopened initial encumbrance values will be updated