Introduced basic pip packaging

Makefile

-SOURCES=exposurecoquimbo tests
+SOURCES=exposurecoquimbo tests setup.py
 LENGTH=96
 
 check: $(SOURCES)

setup.py

+#!/usr/bin/python3
+
+from setuptools import setup, find_packages
+
+tests_require = ["pytest"]
+linters_require = ["black>=20.8b1", "pylint", "flake8"]
+
+setup(
+    name="exposurecoquimbo",
+    version="0.1",
+    description="Create exposure model for Coquimbo",
+    license="AGPLv3+",
+    extras_require={
+        "tests": tests_require,
+        "linters": linters_require,
+    },
+    packages=find_packages(),
+    entry_points={
+        "console_scripts": ["exposurecoquimbo = exposurecoquimbo.exposurecoquimbo:main"]
+    },
+    python_requires=">=3.6",
+)