Several Feature exts and usability improvements

Feature Extension: Provide Filter for "View Requirements", "Requirements Log"
Usability: unify dialogue style
Feature Extension: Provide Filter for "Requirement Traces"
Usability: template for each different FormGenericTable stores Layout for
   each future FormGenericTable
Usability: show number of hidden columns in FormGenericTable's
   Statusline
Usability: Project Open Dialogue: Project List - size;
   Open, Cancel Button: Order, Standard Behaviour
Usability: add copy as html table to each table view (easy excel export)
Lots of feature extensions, cleanup, usability, ..

Usability: Context Menu in TreeView - copy with submenus
Usability: QuickSearch Activation at <ENTER>
Usability: added "collapse all others" to treeview
Feature Extension:
   Support for Child Requirements
   Support in treeview refresh package, traces (parent TO
      children, child FROM parent)
   Support in TreeView initial load - disabled!!! Performance too low

Feature Extension: Possibility to view Requirements & Req Logs at Search,
   Quick Search & Trace Table via context menu

ReqPro 7.1.1.4 compatibility Issues fixed:
   Consistently use ReqPro40.Project___v7 instead of ReqPro40.Project

Feature Extension: Search and Quick Search

ReqPro 7.1.1.4 compatibility Issues:
   Used ReqPro40.Project___v7 instead of
      ReqPro40.Project
   Used ReqPro40.Requirement___v6 instead of ReqPro40.Requirement
   Used ReqPro40.Application___v4 instead of ReqPro40.Application
   Used ReqPro40.Package___v1 instead of ReqPro40.Package
   Used ReqPro40.RootPackage___v1 instead of ReqPro40.RootPackage