add: images.findImage; change images.findColor implementation to opencv

app/src/main/assets/sample/图片与图色处理/区域找色1.js

@@ -3,11 +3,10 @@ if(!requestScreenCapture()){
     stop();
 }
 var img = captureScreen();
-//0xffffff为白色
 toastLog("开始找色");
-//指定在位置(90, 220)宽高为900*1000的区域找色。
-//0xff00cc是编辑器的深粉红色字体(字符串)颜色
-var point = findColorInRegion(img, "#ff00cc", 90, 220, 900, 1000);
+//指定在位置(100, 220)宽高为400*400的区域找色。
+//#75438a是编辑器默认主题的棕红色字体(数字)颜色，位置大约在第5行的"2000"，坐标大约为(283, 465)
+var point = findColorInRegion(img, "#75438a", 90, 220, 900, 1000);
 if(point){
     toastLog("x = " + point.x + ", y = " + point.y);
 }else{

app/src/main/assets/sample/图片与图色处理/精确找色.js

@@ -4,8 +4,8 @@ if(!requestScreenCapture()){
 }
 var img = captureScreen();
 toastLog("开始找色");
-//0x006699为编辑器蓝色字体(var)的颜色
-//找到颜色与0x006699完全相等的颜色
+//0x1d75b3为编辑器默认主题蓝色字体(if, var等关键字)的颜色
+//找到颜色与0x1d75b3完全相等的颜色
 var point = findColorEquals(img, 0x006699);
 if(point){
     toastLog("x = " + point.x + ", y = " + point.y);

app/src/main/java/com/stardust/scriptdroid/autojs/AutoJs.java

@@ -44,6 +44,9 @@ import com.stardust.scriptdroid.tool.AccessibilityServiceTool;
 import com.stardust.view.accessibility.LayoutInspector;
 import com.stardust.view.accessibility.NotificationListener;
 
+import org.opencv.android.BaseLoaderCallback;
+import org.opencv.android.OpenCVLoader;
+
 
 /**
  * Created by Stardust on 2017/4/2.
@@ -78,7 +81,7 @@ public class AutoJs {
         mContext = context;
         mUiHandler = new UiHandler(context);
         mAppUtils = new AppUtils(context);
-        mGlobalConsole = new GlobalStardustConsole(mUiHandler){
+        mGlobalConsole = new GlobalStardustConsole(mUiHandler) {
             @Override
             public String println(int level, CharSequence charSequence) {
                 String log = super.println(level, charSequence);
@@ -93,6 +96,8 @@ public class AutoJs {
         mScriptEngineService.registerGlobalScriptExecutionListener(new ScriptExecutionGlobalListener());
         registerActivityLifecycleCallbacks();
         InputEventObserver.initGlobal(context);
+        OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_13, context, new BaseLoaderCallback(context) {
+        });
     }
 
     private ScriptEngineService buildScriptEngineService() {