Populate contributors from git history

- Scanned git history for each project folder
- Added historical contributors to .all-contributorsrc files
- Generated README contributor tables with emoji badges
- Added generate_readme_tables.py script for future updates

Contributors added:
- Book: profvjreddi, Mjrovai, GabrielAmazonas, hzeljko
- Kits: profvjreddi
- Labs: profvjreddi
- TinyTorch: AmirAlasady, profvjreddi, kai4avaya, minhdang26403,
             didier-durand, karthikdani, jettythek

labs/.all-contributorsrc

@@ -3,12 +3,26 @@
     "projectOwner": "harvard-edge",
     "repoType": "github",
     "repoHost": "https://github.com",
-    "files": ["README.md"],
+    "files": [
+        "README.md"
+    ],
     "imageSize": 80,
     "commit": false,
     "commitConvention": "angular",
     "contributorsPerLine": 7,
     "linkToUsage": false,
     "skipCi": true,
-    "contributors": []
-}
+    "contributors": [
+        {
+            "login": "profvjreddi",
+            "name": "Vijay Janapa Reddi",
+            "avatar_url": "https://avatars.githubusercontent.com/profvjreddi",
+            "profile": "https://github.com/profvjreddi",
+            "contributions": [
+                "code",
+                "design",
+                "doc"
+            ]
+        }
+    ]
+}

labs/README.md

@@ -74,6 +74,13 @@ Thanks to these wonderful people who helped build the labs ([emoji key](https://
 <!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->
 <!-- prettier-ignore-start -->
 <!-- markdownlint-disable -->
+<table>
+  <tbody>
+    <tr>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/profvjreddi"><img src="https://avatars.githubusercontent.com/profvjreddi?v=4?s=80" width="80px;" alt="Vijay Janapa Reddi"/><br /><sub><b>Vijay Janapa Reddi</b></sub></a><br />💻 🎨 📖</td>
+    </tr>
+  </tbody>
+</table>
 
 <!-- markdownlint-restore -->
 <!-- prettier-ignore-end -->