Add pre-commit, prettier configs and editorconfig

.editorconfig

@@ -0,0 +1,19 @@
+# http://editorconfig.org
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_style = space
+indent_size = 2
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.{py, pyi}]
+indent_size = 4
+
+[*Dockerfile*]
+indent_size = 4
+
+[*.md]
+trim_trailing_whitespace = false

.pre-commit-config.yaml

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+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.0.1
+    hooks:
+      - id: trailing-whitespace
+      - id: end-of-file-fixer
+      - id: check-toml
+
+  - repo: https://github.com/asottile/pyupgrade
+    rev: v2.29.1
+    hooks:
+      - id: pyupgrade
+        args: [--py37-plus]
+
+  - repo: https://github.com/psf/black
+    rev: 21.11b1
+    hooks:
+      - id: black
+
+  - repo: https://github.com/pycqa/isort
+    rev: 5.10.1
+    hooks:
+      - id: isort
+
+  - repo: https://github.com/pre-commit/mirrors-prettier
+    rev: v2.5.0
+    hooks:
+      - id: prettier
+        exclude: installation/docker-compose-custom.yml
+
+  - repo: https://github.com/codespell-project/codespell
+    rev: v2.1.0
+    hooks:
+      - id: codespell
+
+  - repo: https://github.com/scop/pre-commit-shfmt
+    rev: v3.4.1-1
+    hooks:
+      - id: shfmt # native (requires Go to build)
+
+  - repo: https://github.com/shellcheck-py/shellcheck-py
+    rev: v0.8.0.1
+    hooks:
+      - id: shellcheck

.prettierignore

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+installation/docker-compose-custom.yml