setup.exe - RFC: reorganizing source into category directories

[Max Bowsher]

Setup.exe has a *lot* of source files.

To make the source a little more comprehendable, I'm planning on moving 
certain subsystems which effectively are utility libraries in their own 
right into subdirectories.

This should hopefully be a step on the path to untangling the logic and the 
GUI code.

To begin with, I'm proposing the following new directories:

One for all source imported with little or no modification from external 
sources - that is md5.* (from libmd5-rfc sourceforge project) and rfc1738.* 
(from squid). A possible name for this would be "srclib".

One for NetIO and io_stream class heirarchies, and geturl.* (associated 
helper functions). This is a large (116KB) chunk of code, exclusively 
concerned with IO. A possible name for this would be "cygsuio".

One for all image files (icon, bitmaps). Name "images".


Comments welcome, especially if anyone has any preferences for different 
names.

Max.