Configure pre-commit with trailing-whitespace, end-of-file-fixer, check-added-large-files, black, flake8

Signed-off-by: Alessandro Maggio <alex.tkd.alex@gmail.com>

.pre-commit-config.yaml

@@ -0,0 +1,22 @@
+repos:
+-   repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v3.4.0
+    hooks:
+    -   id: trailing-whitespace
+    -   id: end-of-file-fixer
+    -   id: check-added-large-files
+-   repo: https://github.com/pycqa/isort
+    rev: 5.7.0
+    hooks:
+    -   id: isort
+        files: ^TwitchChannelPointsMiner/
+-   repo: https://github.com/psf/black
+    rev: 20.8b1
+    hooks:
+    -   id: black
+        files: ^TwitchChannelPointsMiner/
+-   repo: https://gitlab.com/pycqa/flake8
+    rev: 3.8.4
+    hooks:
+    -   id: flake8
+        files: ^TwitchChannelPointsMiner/

requirements.txt

@@ -5,4 +5,5 @@ pillow
 selenium
 python-dateutil
 emoji
-millify
+millify
+pre-commit