Bridge 14: Two enhancement requests for Batch Renaming

Here are two enhancements requests for batch renaming. Both of them should require just a few lines of code and would enhance our daily workflows greatly.

• Let us use longer image names. The text fields offer plenty of space, yet you only offer us space for names up to roughly 25 letters. For our use-case we always need far longer names. They never fit the current field. It was an easy change to make the current field grow, when longer input gets detected.
  
  
• Give us a checkbox to reset the "sequence number" field. This would make work with series of images a lot less tedious. I even suggest making "reset" the default value (checkbox checked) – I cannot imagine a use-case where contiguous numbering between renaming sessions was desirable.
  
  

The attached paintover shows the proposed changes.

@pankajg6675616