[TYPO3-ect] uploads support in cool

[Johannes Künsebeck]

Hello all,

I have written a small document management extension with lib/div in an early version, and it was 
real fun to code that way, especially with the php-templating and the forms lib. Thanks Elmar and 
the whole MVC supporters.
What I really missed (in both the pi_base and lib/div) was a nice way to work with fe_user-uploaded 
files.
There is the tx_lib_parameters object with the GPvars, but to access files I had to  walk through 
the $_FILES-array by myself, including the strange way php handles the array keys in _$FILES, then 
validate the file-type and call move_uploaded_file. I did this by extending the tx_lib_parameters 
and tx_lib_form_base class and it worked well for my needs , but felt a bit hackish.

I think FE file-upload is a quite common scenario. So I like to discuss with you: Is it useful to 
have this functionality in  cool? Is this in the scope of cool?

Regards

Hannes