Add Pylint GitHub action (#154)

* Add Pylint GitHub action

In addition to checking for "code quality" (e.g., coding conventions), Pylint can find logical (e.g., calling methods with an incorrect number of arguments) errors.  This can help us ensure that the code in the master branch remains in a working state.

* Install library

Install the Memphis.py library so that we can grab the dependencies to avoid import errors

Author: rnowling-memphis

.github/workflows/pylint.yml

@@ -0,0 +1,24 @@
+name: Pylint
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.8", "3.9", "3.10"]
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v3
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip wheel
+        pip install pylint
+        python setup.py install
+    - name: Analysing the code with pylint
+      run: |
+        pylint $(git ls-files '*.py')