Tracker InfoWindow: add a tab with file attributes

Now there is no need to resort to listattr and catattr to see the
attributes of a file. You can get them easily, from the GUI.

Limitations:
- No editing support
- Only a few well-known types are handled
- No support for attributes with array of values or otherwise unexpected
size
- Special handling for B_TIME_FORMAT which is annoyingly of a different
size between 32 and 64bit systems, making the attribute format
slightly incompatible.

The window is a bit small to show all the information, so the "Type"
column is put off-view on the right, one can scroll to it if needed.

Vertically there is space for only 4 to 5 entries. It was suggested that
we could merge the permissions and information tabs, making the new
first tab higher, and thus adding more space to this one as well.

Change-Id: I75d192314bc60378c2f058547485cb9c30263485
Reviewed-on: https://review.haiku-os.org/c/haiku/+/1748
Reviewed-by: waddlesplash <waddlesplash@gmail.com>