Support setuptools_scm (#14)

Author: shenxianpeng

.gitignore

@@ -8,3 +8,4 @@ clang_tools/llvm-project*
 .vscode/settings.json
 tests/pytestdebug.log
 tests/__pycache__/
+.eggs

setup.py

@@ -4,16 +4,18 @@
 with open("README.md", "r", encoding='utf-8') as file:
     long_description = file.read()
 
+
 setup(
     name="clang_tools",
-    version="0.2.3",
     description="Install clang-tools (clang-format, clang-tidy) with pip",
     long_description=long_description,
     long_description_content_type="text/markdown",
     author="Peter Shen",
     author_email="[email protected]",
     keywords=["clang", "clang-tools", "clang-extra", "clang-tidy", "clang-format"],
     license="MIT License",
+    use_scm_version={"local_scheme": "no-local-version"},
+    setup_requires=['setuptools_scm'],
     packages=find_packages(),
     project_urls={
         "Source": "https://github.com/cpp-linter/clang-tools-pip",