add some setters and getters to get icon of tab and change it programmatically

MaterialTabsModule/src/main/java/it/neokree/materialtabs/MaterialTab.java

@@ -318,4 +318,11 @@ public int getTabMinWidth() {
         }
    }
 
+    public Drawable getIconDrawable() {
+        return iconDrawable;
+    }
+
+    public void setIconDrawable(Drawable iconDrawable) {
+        this.iconDrawable = iconDrawable;
+    }
 }

MaterialTabsModule/src/main/java/it/neokree/materialtabs/MaterialTabHost.java

@@ -350,4 +350,14 @@ public void onClick(View v) { // on tablet left/right button clicked
         }
 
     }
+    public List<MaterialTab> getTabs() {
+        return tabs;
+    }
+
+    public void setTabs(List<MaterialTab> tabs) {
+        this.tabs = tabs;
+    }
+    public MaterialTab gettabon(int position){
+        return tabs.get(position);
+    }
 }