Add Dynamic Poll Web Part with core functionality and styling

- Initialize Gulp build process with gulpfile.js
- Create package.json for project dependencies and scripts
- Add TypeScript declarations for SCSS modules
- Implement DynamicPollWebPart with property pane configuration
- Create PollDataService for SharePoint list interactions
- Develop core polling logic in PollCore.ts
- Define types for polls and answers in PollTypes.ts
- Create React components for DynamicPoll UI
- Add localization support for English and German
- Implement unit tests for core polling functionality
- Set up TypeScript and TSLint configurations

tsconfig.json

@@ -0,0 +1,11 @@
+{
+  "compilerOptions": {
+    "target": "es5", "forceConsistentCasingInFileNames": true, "module": "esnext",
+    "moduleResolution": "node", "jsx": "react", "declaration": true, "sourceMap": true,
+    "experimentalDecorators": true, "skipLibCheck": true,
+    "typeRoots": ["./node_modules/@types", "./node_modules/@microsoft"],
+    "types": ["es6-promise", "webpack-env"],
+    "lib": ["es5", "dom", "es2015.collection"]
+  }
+}
+