重新建库，开源大部分代码，脱敏处理

.gitignore

@@ -0,0 +1,19 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties
+/app/release/
+.idea
+/.idea/
+/app/src/main/jniLibs/arm64-v8a/libJniQrCodeSign.so