Rename Abstract tool

src/PriceListTools/AbstractTool.cs

@@ -7,7 +7,7 @@ using Application = Microsoft.Office.Interop.Excel.Application;
 
 namespace RehauSku.PriceListTools
 {
-    internal abstract class PriceListTool
+    internal abstract class AbstractTool
     {
         protected private Application ExcelApp = (Application)ExcelDnaUtil.Application;
         protected private Target TargetFile;

src/PriceListTools/CombineTool.cs

@@ -5,7 +5,7 @@ using System.Linq;
 
 namespace RehauSku.PriceListTools
 {
-    internal class CombineTool : PriceListTool
+    internal class CombineTool : AbstractTool
     {
         public List<Source> SourceFiles;
 

src/PriceListTools/ConvertTool.cs

@@ -3,7 +3,7 @@ using System;
 
 namespace RehauSku.PriceListTools
 {
-    internal class ConvertTool : PriceListTool
+    internal class ConvertTool : AbstractTool
     {
         private Source Current;
 

src/PriceListTools/ExportTool.cs

@@ -6,7 +6,7 @@ using RehauSku.Interface;
 
 namespace RehauSku.PriceListTools
 {
-    internal class ExportTool : PriceListTool
+    internal class ExportTool : AbstractTool
     {
         private Dictionary<Position, double> PositionAmount;
         private Range Selection;

src/PriceListTools/MergeTool.cs

@@ -4,7 +4,7 @@ using System.Linq;
 
 namespace RehauSku.PriceListTools
 {
-    internal class MergeTool : PriceListTool
+    internal class MergeTool : AbstractTool
     {
         public List<Source> SourceFiles;