Consolidate flake8 settings

Consolidates sane flake8 settings to pyproject with the Flake8-pyproject plugin.

Does not change logic of test workflow but allows base settings to live in pyproject for anyone using flake8 as an external linter (e.g. vscode)

Also fixes some flake8 errors that were not being picked up by current testing, mostly unused imports.

.github/workflows/test.yml

@@ -3,8 +3,12 @@ name: Python Test
 on:
   push:
     branches: [ master, development ]
+    paths-ignore:
+      - "*.md"
   pull_request:
     branches: [ master, development ]
+    paths-ignore:
+      - "*.md"
 
 jobs:
   test:
@@ -27,7 +31,7 @@ jobs:
 
     - name: Install dependencies
       run: |
-        python -m pip install --upgrade pip flake8 pytest pytest-cov
+        python -m pip install --upgrade pip Flake8-pyproject pytest pytest-cov
         pip install .
 
     - name: Make configuration for tests
@@ -38,7 +42,7 @@ jobs:
 
     - name: Lint with flake8
       run: |
-        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+        flake8 . --select=E9,F63,F7,F82
 
     - name: Test with pytest
       run: |