Enable field properties to be exported too.

[uniederer]

So far field properties such as descriptions, lookup fields, required, etc. are not with the table's structure. This small change includes these properties with the export and allows for a more complete reconstruction of the database's tables.

[uniederer]

Appearently I'm unable to work correctly with github . The second commit wasn't intended to be part of this pull request. However it's only some "cosmetic" feature I added:
An import or export operation now shows an "hourglass" and some feedback in the status bar as I was annoyed by not having feedback for quite lengthy operations. I also redirected most of the Debug.Print-Commands through an internal sub routine that shows the messages to the debug output as well as to the status bar.

[zommuter]

Appearently I'm unable to work correctly with github

Github keeps a pull request up to date with the branch you submitted, so if you only want specific commits to be pulled you have to create a separate feature-branch and submit a pull-request for that branch.

But actually, a progress indicator is just what I was looking for, I'll try that one out, thanks :)

[uniederer]

Thanks for the hint. I'll try that next time.
As for this pull request, I'd recommend to merge all the changes I've made anyway. :-)