add opencvsharp package

AutoDo/packages.config

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="OpenCvSharp3-AnyCPU" version="4.0.0.20181129" targetFramework="net461" />
+</packages>

ManulDo/packages.config

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="OpenCvSharp3-AnyCPU" version="4.0.0.20181129" targetFramework="net461" />
+</packages>

MeasureThread/packages.config

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="OpenCvSharp3-AnyCPU" version="4.0.0.20181129" targetFramework="net461" />
+</packages>