[LICENSE] Switch to Tile-AI and declare the copyright time for the Microsoft team. (#208)

LICENSE

     MIT License
 
-    Copyright (c) Microsoft Corporation.
+    Copyright (c) Tile-AI.
+    **During the period from December 1, 2024, to Mar 14, 2025, this project is 
+    subject to additional collaboration terms with Microsoft Corporation.**
 
     Permission is hereby granted, free of charge, to any person obtaining a copy
     of this software and associated documentation files (the "Software"), to deal

setup.py

@@ -550,7 +550,7 @@ setup(
              if PYPI_BUILD else get_tilelang_version()),
     packages=find_packages(where="."),
     package_dir={"": "."},
-    author="Microsoft Research",
+    author="Tile-AI",
     description="A tile level programming language to generate high performance code.",
     long_description=read_readme(),
     long_description_content_type="text/markdown",