Replace package configuration with hatch pypackage.toml

```
  error: subprocess-exited-with-error

  × python setup.py egg_info did not run successfully.
  │ exit code: 1
  ╰─> [27 lines of output]
      running egg_info
      /home/matt/bin/mambaforge/envs/oai-analysis-2/lib/python3.8/site-packages/setuptools/dist.py:548: UserWarning: The version specified ('0.1.0-110-g5533981') is an invalid version, this may not work as expected with newer versions of setuptools, pip, and PyPI. Please see PEP 440 for more details.
        warnings.warn(
      Traceback (most recent call last):
        File "<string>", line 2, in <module>
        File "<pip-setuptools-caller>", line 34, in <module>
        File "/tmp/pip-req-build-lc_t92jl/setup.py", line 121, in <module>
          setup(
        File "/home/matt/bin/mambaforge/envs/oai-analysis-2/lib/python3.8/site-packages/setuptools/__init__.py", line 108, in setup
          return distutils.core.setup(**attrs)
        File "/home/matt/bin/mambaforge/envs/oai-analysis-2/lib/python3.8/site-packages/setuptools/_distutils/core.py", line 185, in setup
          return run_commands(dist)
        File "/home/matt/bin/mambaforge/envs/oai-analysis-2/lib/python3.8/site-packages/setuptools/_distutils/core.py", line 201, in run_commands
          dist.run_commands()
        File "/home/matt/bin/mambaforge/envs/oai-analysis-2/lib/python3.8/site-packages/setuptools/_distutils/dist.py", line 969, in run_commands
          self.run_command(cmd)
        File "/home/matt/bin/mambaforge/envs/oai-analysis-2/lib/python3.8/site-packages/setuptools/dist.py", line 1213, in run_command
          super().run_command(command)
        File "/home/matt/bin/mambaforge/envs/oai-analysis-2/lib/python3.8/site-packages/setuptools/_distutils/dist.py", line 987, in run_command
          cmd_obj.ensure_finalized()
        File "/home/matt/bin/mambaforge/envs/oai-analysis-2/lib/python3.8/site-packages/setuptools/_distutils/cmd.py", line 111, in ensure_finalized
          self.finalize_options()
        File "/home/matt/bin/mambaforge/envs/oai-analysis-2/lib/python3.8/site-packages/setuptools/command/egg_info.py", line 219, in finalize_options
          parsed_version = parse_version(self.egg_version)
        File "/home/matt/bin/mambaforge/envs/oai-analysis-2/lib/python3.8/site-packages/pkg_resources/_vendor/packaging/version.py", line 197, in __init__
          raise InvalidVersion(f"Invalid version: '{version}'")
      pkg_resources.extern.packaging.version.InvalidVersion: Invalid version: '0.1.0-110-g5533981'
      [end of output]
```

environment.yml

@@ -7,7 +7,6 @@ dependencies:
   - python=3.8
   - pytorch-gpu
   - pip
-  - git
   - pip:
     - itk==5.3.0
     - coiled-runtime

oai_analysis_2/__about__.py

@@ -0,0 +1 @@
+__version__ = '0.1.0'

oai_analysis_2/__init__.py

@@ -1,5 +0,0 @@
-__version__ = '0.1.0'
-
-#from .analysis_object import AnalysisObject
-#from oai_analysis_2 import mesh_processing
-

pyproject.toml

@@ -0,0 +1,62 @@
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[project]
+name = "oai-analysis-2"
+description = 'Open source analysis approaches for the Osteoarthritis Initiative magnetic resonance image data.'
+readme = "README.md"
+requires-python = ">=3.7"
+license = {file = "LICENSE"}
+keywords = []
+authors = [
+  { name = "Hastings Greer", email = "hastings.greer@gmail.com" },
+  { name = "Pranjal Sahu", email = "pranjalsahu5@gmail.com" },
+]
+classifiers = [
+  "Development Status :: 4 - Beta",
+  "Programming Language :: Python",
+  "Programming Language :: Python :: 3.7",
+  "Programming Language :: Python :: 3.8",
+  "Programming Language :: Python :: 3.9",
+  "Programming Language :: Python :: 3.10",
+  "Programming Language :: Python :: 3.11",
+  "Programming Language :: Python :: Implementation :: CPython",
+  "Programming Language :: Python :: Implementation :: PyPy",
+]
+dependencies = []
+dynamic = ["version"]
+
+[project.urls]
+Documentation = "https://github.com/uncbiag/OAI_analysis_2#readme"
+Issues = "https://github.com/uncbiag/OAI_analysis_2/issues"
+Source = "https://github.com/uncbiag/OAI_analysis_2"
+
+[tool.hatch.version]
+path = "oai_analysis_2/__about__.py"
+
+[tool.hatch.envs.default]
+dependencies = [
+  "pytest",
+  "pytest-cov",
+]
+[tool.hatch.envs.default.scripts]
+cov = "pytest --cov-report=term-missing --cov-config=pyproject.toml --cov=oai_analysis_2 --cov=tests {args}"
+no-cov = "cov --no-cov {args}"
+
+[[tool.hatch.envs.test.matrix]]
+python = ["37", "38", "39", "310", "311"]
+
+[tool.coverage.run]
+branch = true
+parallel = true
+omit = [
+  "oai_analysis_2/__about__.py",
+]
+
+[tool.coverage.report]
+exclude_lines = [
+  "no cov",
+  "if __name__ == .__main__.:",
+  "if TYPE_CHECKING:",
+]