daviedos's sandbox: Commerce Separate Capture

Commerce separate capture provides a plugin frame for capturing "prior auth" transactions. The module currently only contains a plugin for Authorize.net, but others can be written to follow a similar pattern.

Features include:

• Rule to trigger order transaction capture on order status update. You decide the target status and the success status (go to admin/commerce/config/capture).
• Intelligent handling of order balance: the capture function will capture the amount of the order balance if it is less than or equal to the auth authorization.

Limitations:

• This module will not capture funds on orders that have more than one pending transaction. This choice was made to prevent partial capture of the order balance.