Feature Request: changelist for multiple files in time order

[ericsunplus]

Currently the :changes only gives the change list to current buffer. In comparision :jumps and :tags gives a list across multiple files in the current vim-server.

It is possible to make a script on all open buffers and list the changes via getchangelist() in a quickfix window. However the list is per file basis, there is no way to sort it because there is no timestamp recorded in the change list.

I think adding a timestamp will give possibility to make a multiple-file change list in time order. It will be better if a intrinsic :globalchanges can be provided to provide cross-file features like :jumps and :tags.