0024784: Move documentation in CDL files to proper location

Mostly duplicated comments were removed and missing ones were moved
into dedicated class CDL files.
Some more duplicated comments were removed from CDL files.
Correction of merge

src/ShapeFix/ShapeFix.cdl

@@ -53,62 +53,41 @@ is
     class EdgeProjAux;
 
     class Edge;
-    	---Purpose: Fixing different problems on edge
-	
+
     class Wire;
-      ---Purpose: Fixing different problems with wires
 
     class Face;
-    	---Purpose: Fixing problems with face (orientation of wires and wrong wires)
-	  
+
     class FixSmallFace;
-      ---Purpose: Fixing face with small size
 
     class WireVertex;
-    	---Purpose: Fixing disconnected edges in the wire
 
     class Wireframe;
-      ---Purpose: Provides methods to fix wireframe of shape
-    
+
     class FreeBounds;
-      ---Purpose: Fixing free bounds of the shape (connecting open wires)
 
     class FaceConnect;
-      ---Purpose: Rebuilds connectivity between faces in shell
-	
+
     class Shell;
-    	---Purpose: Fixing orientation of faces in shell
 
     class Solid;
-      ---Purpose: Creating solid from shell and orienting it to have finite volume
-	
+
     class ShapeTolerance;
-    	---Purpose: Modifying shape tolerances
 
     class Shape;
-    	---Purpose: Fixing problem of shape. 
 
     class EdgeConnect;
-        ---Purpose: Rebuilds edges to connect with new vertices, was moved from ShapeBuild
 
     class ComposeShell;
-    	---Purpose: Splits a (pseudo)face onto grid of faces (shell)
 
     class SplitCommonVertex;
-    	---Purpose: Splits vertex which is common for two wires
-      --          (for writing into STEP)
 
     class WireSegment;
-    	---Purpose: Auxiliary class (data storage) for ComposeShell
-	
+
     class IntersectionTool;
-    	---Purpose: Tool for fixing selfintersecting wire
-      --          and intersecting wires
-	
+
     class SplitTool;
-    	---Purpose: Tool for splitting and cutting edges; incudes methods
-      --          used in OverlappingTool and IntersectionTool
-	
+
     class SequenceOfWireSegment instantiates Sequence from TCollection
     	(WireSegment from ShapeFix);