There is no need to compile our DLLs as shared libraries since we are
managing symbols exports and imports through spec files.
On my system, this reduces the configure-time by a factor of two.
- Move CIFSBand to the shellbars static lib which is linked to browseui and rshell.
- Move CQuickLaunchBand to rshell.
- Make nescessary adjustments so that they can both be registered and instantiated.