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/BRepClass/BRepClass.cdl

@@ -36,19 +36,14 @@ uses
 
 is
     class Edge;
-	---Purpose: Stores the Edge and the Face.
 
     class Intersector;
-	---Purpose: Intersect an Edge  with a segment.   This class is
-	--          inherited   from   IntConicCurveOfGInter      from
-	--          Geom2dInt.
 
     class FacePassiveClassifier instantiates Classifier2d from TopClass
     	(Edge         from BRepClass,
 	 Intersector  from BRepClass);
 
     class FaceExplorer;
-	---Purpose: Exploration of a Face to return UV edges.
 
     class FClassifier instantiates FaceClassifier from TopClass
     	(FaceExplorer from BRepClass,
@@ -56,8 +51,5 @@ is
 	 Intersector  from BRepClass);
 	 
     class FaceClassifier;
-	---Purpose: Inherited    from   FClassifier   to   provide   a
-	--          Constructor with a Face.
 
-       
 end BRepClass;

src/BRepClass/BRepClass_FaceClassifier.cdl

@@ -16,7 +16,7 @@
 
 class FaceClassifier from BRepClass inherits FClassifier from BRepClass
 
-	---Purpose: Provides Constructors.
+	---Purpose: Provides Constructors with a Face.
 
 uses
     FaceExplorer from BRepClass,

src/BRepClass/BRepClass_FaceExplorer.cdl

@@ -19,7 +19,7 @@
 class FaceExplorer from BRepClass 
 
 	---Purpose: Provide an   exploration of a  BRep Face   for the
-	--          classification.
+	--          classification. Return UV edges.
 
 uses
     Orientation  from TopAbs,

src/BRepClass/BRepClass_Intersector.cdl

@@ -17,7 +17,8 @@
 class Intersector from BRepClass 
 inherits IntConicCurveOfGInter from Geom2dInt
 
-	---Purpose: Implement the Intersector2d required by the classifier.
+	---Purpose: Intersect an Edge  with a segment.
+	--          Implement the Intersector2d required by the classifier.
 
 uses
     Lin2d from gp,