Show birth time (btime) for file/folder in Properties window

## Problem
elementary OS file manager does not support birth time (`btime`) for file/folder.

Birth time = creation time

## Proposal
Just add the birth time (`btime`), because since coreutils 8.51 and later the `stat` command can show the `btime` for a file/folder if the file system (ext4, Btrfs) stores it.

https://lists.gnu.org/archive/html/coreutils-announce/2019-03/msg00000.html

## Prior Art
In the File Manager settings add the possibility to add `btime` to the column, just like `mtime`.

Additionally under "Properties" also show for file/folder.