Switch to PEP 517 build

Updated setup.cfg, deleted setup.py and added build time requirements in pyproject.toml to shift the build process to PEP 517.

pyproject.toml

@@ -0,0 +1,2 @@
+[build-system]
+requires = ["cython", "setuptools", "wheel"]

setup.cfg

@@ -1,3 +1,34 @@
 # Changes required for PyPI
 [metadata]:
-description-file = README.md
+name = vcf2fhir
+version = 0.0.17
+description = Convert .vcf files to HL7 FHIR standard
+long_description = file: README.md
+long_description_content_type = text/markdown
+license = Apache Software License
+author = ""
+author_email = [email protected]
+url = https://github.com/elimuinformatics/vcf2fhir
+classifiers =
+    Programming Language :: Python :: 3
+    Operating System :: OS Independent
+    License :: OSI Approved :: Apache Software License
+
+[options]
+test_suite = vcf2fhir.test.test_vcf2fhir.suite
+setup_requires =
+    setuptools
+packages = 
+    vcf2fhir
+    vcf2fhir.test
+python_version = >=3.6
+install_requires =
+    Cython>=0.29.21
+    fhirclient==3.2.0
+    pysam
+    pandas
+    pytz>=2019.3
+    pyVCF>=0.6.8
+    pyranges>=0.0.96
+tests_require =
+    unittest