[Android] Change private for protected in all Renderers constructors

source/android/adaptivecards/src/main/java/io/adaptivecards/renderer/AdaptiveCardRenderer.java

@@ -31,7 +31,7 @@ public class AdaptiveCardRenderer
 {
     public static final double VERSION = 1.0;
 
-    private AdaptiveCardRenderer()
+    protected AdaptiveCardRenderer()
     {
     }
 

source/android/adaptivecards/src/main/java/io/adaptivecards/renderer/action/ActionElementRenderer.java

@@ -30,7 +30,7 @@
 
 public class ActionElementRenderer implements IBaseActionElementRenderer
 {
-    private ActionElementRenderer()
+    protected ActionElementRenderer()
     {
     }
 

source/android/adaptivecards/src/main/java/io/adaptivecards/renderer/input/ChoiceSetInputRenderer.java

@@ -34,7 +34,7 @@
 
 public class ChoiceSetInputRenderer extends BaseCardElementRenderer
 {
-    private ChoiceSetInputRenderer()
+    protected ChoiceSetInputRenderer()
     {
     }
 

source/android/adaptivecards/src/main/java/io/adaptivecards/renderer/input/DateInputRenderer.java

@@ -26,7 +26,7 @@
 
 public class DateInputRenderer extends TextInputRenderer
 {
-    private DateInputRenderer()
+    protected DateInputRenderer()
     {
     }
 

source/android/adaptivecards/src/main/java/io/adaptivecards/renderer/input/NumberInputRenderer.java

@@ -21,7 +21,7 @@
 
 public class NumberInputRenderer extends TextInputRenderer
 {
-    private NumberInputRenderer()
+    protected NumberInputRenderer()
     {
     }
 

source/android/adaptivecards/src/main/java/io/adaptivecards/renderer/input/TimeInputRenderer.java

@@ -26,7 +26,7 @@
 
 public class TimeInputRenderer extends TextInputRenderer
 {
-    private TimeInputRenderer()
+    protected TimeInputRenderer()
     {
     }
 

source/android/adaptivecards/src/main/java/io/adaptivecards/renderer/input/ToggleInputRenderer.java

@@ -24,7 +24,7 @@
 
 public class ToggleInputRenderer extends BaseCardElementRenderer
 {
-    private ToggleInputRenderer()
+    protected ToggleInputRenderer()
     {
     }
 

source/android/adaptivecards/src/main/java/io/adaptivecards/renderer/readonly/ColumnRenderer.java

@@ -26,7 +26,7 @@
 
 public class ColumnRenderer extends BaseCardElementRenderer
 {
-    private ColumnRenderer()
+    protected ColumnRenderer()
     {
     }
 

source/android/adaptivecards/src/main/java/io/adaptivecards/renderer/readonly/ColumnSetRenderer.java

@@ -28,7 +28,7 @@
 
 public class ColumnSetRenderer extends BaseCardElementRenderer
 {
-    private ColumnSetRenderer()
+    protected ColumnSetRenderer()
     {
     }
 

source/android/adaptivecards/src/main/java/io/adaptivecards/renderer/readonly/ContainerRenderer.java

@@ -24,7 +24,7 @@
 
 public class ContainerRenderer extends BaseCardElementRenderer
 {
-    private ContainerRenderer()
+    protected ContainerRenderer()
     {
     }
 

source/android/adaptivecards/src/main/java/io/adaptivecards/renderer/readonly/FactSetRenderer.java

@@ -30,7 +30,7 @@
 
 public class FactSetRenderer extends BaseCardElementRenderer
 {
-    private FactSetRenderer()
+    protected FactSetRenderer()
     {
     }
 

source/android/adaptivecards/src/main/java/io/adaptivecards/renderer/readonly/ImageRenderer.java

@@ -33,7 +33,7 @@
 
 public class ImageRenderer extends BaseCardElementRenderer
 {
-    private ImageRenderer()
+    protected ImageRenderer()
     {
     }
 

source/android/adaptivecards/src/main/java/io/adaptivecards/renderer/readonly/ImageSetRenderer.java

@@ -29,7 +29,7 @@
 
 public class ImageSetRenderer extends BaseCardElementRenderer
 {
-    private ImageSetRenderer()
+    protected ImageSetRenderer()
     {
     }
 

source/android/adaptivecards/src/main/java/io/adaptivecards/renderer/readonly/TextBlockRenderer.java

@@ -45,7 +45,7 @@
 
 public class TextBlockRenderer extends BaseCardElementRenderer
 {
-    private TextBlockRenderer()
+    protected TextBlockRenderer()
     {
         // Set up Text Weight Map
         m_textWeightMap.put(TextWeight.Default, g_textWeightDefault);