Add optional kasa-crypt dependency for speedups (#464)

If installed, use the optimized protocol encryption procedures implemented as a C extension by kasa-crypt (https://pypi.org/project/kasa-crypt/

.github/workflows/ci.yml

@@ -58,7 +58,7 @@ jobs:
           poetry run pre-commit run check-ast --all-files
 
   tests:
-    name: "Python ${{ matrix.python-version}} on ${{ matrix.os }}"
+    name: Python ${{ matrix.python-version}} on ${{ matrix.os }}${{ fromJSON('[" (extras)", ""]')[matrix.extras == ''] }}
     needs: linting
     runs-on: ${{ matrix.os }}
 
@@ -66,6 +66,24 @@ jobs:
       matrix:
         python-version: ["3.8", "3.9", "3.10", "3.11", "pypy-3.8"]
         os: [ubuntu-latest, macos-latest, windows-latest]
+        extras: [false, true]
+        exclude:
+          - os: macos-latest
+            extras: true
+          - os: windows-latest
+            extras: true
+          - os: ubuntu-latest
+            python-version: "pypy-3.8"
+            extras: true
+          - os: ubuntu-latest
+            python-version: "3.8"
+            extras: true
+          - os: ubuntu-latest
+            python-version: "3.9"
+            extras: true
+          - os: ubuntu-latest
+            python-version: "3.10"
+            extras: true
         # exclude pypy on windows, as the poetry install seems to be very flaky:
         # PermissionError(13, 'The process cannot access the file because it is being used by another process'))
         # at C:\hostedtoolcache\windows\PyPy\3.7.10\x86\site-packages\requests\models.py:761 in generate
@@ -78,10 +96,16 @@ jobs:
       - uses: "actions/setup-python@v2"
         with:
           python-version: "${{ matrix.python-version }}"
-      - name: "Install dependencies"
+      - name: "Install dependencies (no speedups)"
+        if: matrix.extras == false
         run: |
           python -m pip install --upgrade pip poetry
           poetry install
+      - name: "Install dependencies (with speedups)"
+        if: matrix.extras == true
+        run: |
+          python -m pip install --upgrade pip poetry
+          poetry install --extras speedups
       - name: "Run tests"
         run: |
           poetry run pytest --cov kasa --cov-report xml