Initial commit

- add the following files:
  + .gitignore => ignore poetry's and pyenv's artifacts
  + LICENSE.txt => MIT license as the project is scientific research
  + README.md => rough description of the project
  + poetry.lock
  + pyproject.toml
  + src/urban_meal_delivery/__init__.py => source code package
- use a "src" layout structure:
  + ensure that pytest runs the tests against a packaged and pip
    installed version of the source code, not the *.py files in the
    project directory
  + more info: https://hynek.me/articles/testing-packaging/

pyproject.toml

@@ -0,0 +1,25 @@
+[build-system]
+build-backend = "poetry.masonry.api"
+requires = ["poetry>=0.12"]
+
+[tool.poetry]
+name = "urban-meal-delivery"
+version = "0.1.0.dev0"
+
+authors = ["Alexander Hess <alexander@webartifex.biz>"]
+description = "Optimizing an urban meal delivery platform"
+keywords = [
+    "data-science",
+    "meal-delivery",
+    "vehicle-routing-problem",
+]
+license = "MIT"
+
+readme = "README.md"
+homepage = "https://github.com/webartifex/urban-meal-delivery"
+repository = "https://github.com/webartifex/urban-meal-delivery"
+
+[tool.poetry.dependencies]
+python = "^3.8"
+
+[tool.poetry.dev-dependencies]