MM-63669 E2E/Playwright: Move "e2e-tests/playwright/test" to "e2e-tests/playwright" folder (#30647)

* move "e2e-tests/playwright/test" to  "e2e-tests/playwright/test" and expose "ensurePluginsLoaded"

* add test setup, and expose ensurePluginsLoaded and ensureServerDeployment to pw

e2e-tests/playwright/tsconfig.json

@@ -0,0 +1,21 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "moduleResolution": "node",
+        "target": "es2022",
+        "declaration": true,
+        "declarationDir": "dist",
+        "strict": true,
+        "resolveJsonModule": true,
+        "isolatedModules": true,
+        "esModuleInterop": true,
+        "allowSyntheticDefaultImports": true,
+        "composite": true,
+        "strictNullChecks": true,
+        "skipLibCheck": true,
+        "noEmit": true,
+        "baseUrl": "."
+    },
+    "include": ["./**/*"],
+    "exclude": ["node_modules", "playwright-report", "lib"]
+}