Organize and add to gitignore

Organized into groups and added header comments, following  example from https://paulvanderlaken.com/2020/05/12/create-perfect-gitignore-file-for-project/ and https://github.com/rubiagatra/data-science-with-python/blob/master/.gitignore

Author: aufdenkampe

.gitignore

@@ -1,11 +1,15 @@
+# Editors & IDEs
+.vscode/
+
+# Jupyter Notebook
 .ipynb_checkpoints
+
+# Distribution / packaging
 build
 build/*
 _build
 _build/*
 .bzr
-.coverage
-.coverage/*
 develop-eggs
 dist
 dist/*
@@ -15,19 +19,29 @@ downloads
 *.egg-info
 eggs
 fake-eggs
-.hg
-htmlcov
 .installed.cfg
-*.mo
 .mr.developer.cfg
 parts
+
+# Byte-compiled / optimized / DLL files
 *.pyc
 __pycache__
 __pycache__/*
 *.pyo
 .svn
-*.tmp*
+
+# Unit test / coverage reports
+htmlcov
 .tox
 .tox/*
-stats.dat
-.ropeproject
+.coverage
+.coverage/*
+
+# Translations
+*.mo
+
+
+# Stashes, etc.
+.hg
+*.tmp*
+tests/_LargeFileStash