Feature/setup cfg (#28)

* Add setup.cfg

* Run black and isort.

* Add blueprint to first party.

* Make const import consistent.

setup.cfg

@@ -0,0 +1,35 @@
+[flake8]
+exclude = .venv,.git,.tox,docs,venv,bin,lib,deps,build
+doctests = True
+# To work with Black
+max-line-length = 88
+# E501: line too long
+# W503: Line break occurred before a binary operator
+# E203: Whitespace before ':'
+# D202 No blank lines allowed after function docstring
+# W504 line break after binary operator
+ignore =
+    E501,
+    W503,
+    E203,
+    D202,
+    W504
+
+[isort]
+# https://github.com/timothycrosley/isort
+# https://github.com/timothycrosley/isort/wiki/isort-Settings
+# splits long import on multiple lines indented by 4 spaces
+multi_line_output = 3
+include_trailing_comma=True
+force_grid_wrap=0
+use_parentheses=True
+line_length=88
+indent = "    "
+# by default isort don't check module indexes
+not_skip = __init__.py
+# will group `import x` and `from x import` of the same module.
+force_sort_within_sections = true
+sections = FUTURE,STDLIB,INBETWEENS,THIRDPARTY,FIRSTPARTY,LOCALFOLDER
+default_section = THIRDPARTY
+known_first_party = custom_components.blueprint 
+combine_as_imports = true