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

.yo-rc.json

@@ -0,0 +1,12 @@
+{
+  "@microsoft/generator-sharepoint": {
+    "version": "1.4.1",
+    "libraryName": "dynamic-poll",
+    "libraryId": "900239c9-b6c7-495d-a386-2d08a81a66f3",
+    "environment": "onprem",
+    "packageManager": "npm",
+    "solutionName": "dynamic-poll",
+    "componentType": "webpart"
+  }
+}
+