Make numba optional dependecy and update build system

Author: rsreds

README.md

@@ -161,8 +161,8 @@ The supported levels - from least to most verbose - are: `ERROR`, `WARN`, `INFO`
 
 ## Contributing
 
-Contributions are welcome. If you want to contribute, please follow the [Contribution guidelines](CONTRIBUTING.md).
+Contributions are welcome. If you want to contribute, please follow the [Contribution guidelines](https://github.com/cms-patatrack/The-Optimizer/blob/main/CONTRIBUTING.md).
 
 ## License
 
-The Optimizer is distributed under the [MPL 2.0 License](LICENSE). Feel free to use, modify, and distribute the code following the terms of the license.  
+The Optimizer is distributed under the [MPL 2.0 License](https://github.com/cms-patatrack/The-Optimizer/blob/main/LICENSE). Feel free to use, modify, and distribute the code following the terms of the license.  

optimizer/util.py

@@ -4,7 +4,16 @@
 import logging
 import pickle
 import numpy as np
-from numba import njit
+
+# If numba is installed import it and use njit decorator otherwise use a dummy decorator
+try:
+    from numba import njit
+except ImportError:
+    def njit(*args, **kwargs):
+        def dummy_decorator(func):
+            return func
+        return dummy_decorator
+
 
 
 class CustomFormatter(logging.Formatter):

pyproject.toml

@@ -0,0 +1,33 @@
+[build-system]
+requires = ["setuptools>=64", "setuptools-scm>=8", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "TheOptimizer"
+dynamic = ["version"]
+dependencies = [
+    "scikit-learn",
+    "numpy",
+    "matplotlib",
+    "pandas"
+]
+readme = "README.md"
+description = "A optimization library for multi-objective optimization problems."
+classifiers = [
+    "Programming Language :: Python :: 3",
+    "Operating System :: OS Independent",
+    "License :: OSI Approved :: MIT License",
+]
+
+[project.optional-dependencies]
+numba = ["numba"]
+
+[project.urls]
+"Source Code" = "https://github.com/cms-patatrack/The-Optimizer"
+"Issues" = "https://github.com/cms-patatrack/The-Optimizer/issues"
+
+
+[tool.setuptools.packages.find]
+where = ["optimizer", "optimizer.mopso"]
+
+[tool.setuptools_scm]