[BROWSEUI] -Move the following classes to a new static lib called shellbars: CBandSit...

[BROWSEUI] -Move the following classes to a new static lib called shellbars: CBandSite, CBandSiteMenu, CBaseBar, CSHEnumClassesOfCategories.
- This will be linked to rshell in order to implement support for additional toolbars in the taskbar as well as floating toolbars.
- In the future more classes will be added in this static lib including: CISFBand (which implements a dockable toolbar that shows the contents of a shell folder), CQuickLinks (a special CISFBand), CDeskBarApp (a special CBaseBar that implements the floating host for toolbars) and perhaps more.

svn path=/trunk/; revision=74292