Flesh out packaging/CI and fix catalog issues

With some pointers from @martindurant in
[this issue](intake/intake-parquet#26) I got
anonymous public access working, and caching can now be turned off when
appropriate.

Accessing the partitioned data is still very slow in a variety of
contexts for reasons I don't understand. I also hit a snag attempting to
create a consolidated external `_metadata` file to hopefully speed up
access to the partitioned data so... not sure what to do there.

The current Tox/pytest setup expects to find data locally, which won't
work right now on GitHub. Need to set the tests up better for real world
use, and less for exploring different catalog configurations.

Closes #5, #6

.github/FUNDING.yml

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+custom: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=PZBZDFNKBJW5E&source=url

.github/dependabot.yml

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+version: 2
+updates:
+  - package-ecosystem: "pip"
+    directory: "/"
+    target-branch: "main"
+    labels:
+      - "dependencies"
+    schedule:
+      interval: "daily"
+
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    target-branch: "main"
+    schedule:
+      interval: "daily"

.github/workflows/tox-pytest.yml

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+name: tox-pytest
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.8", "3.9", "3.10"]
+      fail-fast: false
+
+    steps:
+    - uses: actions/checkout@v3
+      with:
+        fetch-depth: 2
+
+    - name: Set up conda environment for testing
+      uses: conda-incubator/setup-miniconda@v2.1.1
+      with:
+        miniforge-variant: Mambaforge
+        miniforge-version: latest
+        use-mamba: true
+        mamba-version: "*"
+        channels: conda-forge,defaults
+        channel-priority: true
+        python-version: ${{ matrix.python-version }}
+        activate-environment: python-template
+        environment-file: environment.yml
+    - shell: bash -l {0}
+      run: |
+        conda info
+        conda list
+        conda config --show-sources
+        conda config --show
+        printenv | sort
+
+    - name: Run PyTest with Tox
+      run: |
+        conda run -n pudl-catalog tox
+
+    - name: Upload test coverage report to CodeCov
+      uses: codecov/codecov-action@v3
+
+    - name: Inform the Codemonkeys
+      uses: 8398a7/action-slack@v3
+      with:
+        status: custom
+        fields: workflow,job,commit,repo,ref,author,took
+        custom_payload: |
+          {
+            username: 'action-slack',
+            icon_emoji: ':octocat:',
+            attachments: [{
+              color: '${{ job.status }}' === 'success' ? 'good' : '${{ job.status }}' === 'failure' ? 'danger' : 'warning',
+              text: `${process.env.AS_WORKFLOW}\n${process.env.AS_JOB} (${process.env.AS_COMMIT}) of ${process.env.AS_REPO}@${process.env.AS_REF} by ${process.env.AS_AUTHOR} ${{ job.status }} in ${process.env.AS_TOOK}`,
+            }]
+          }
+      env:
+        GITHUB_TOKEN: ${{ github.token }} # required
+        SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }} # required
+        MATRIX_CONTEXT: ${{ toJson(matrix) }} # required
+      if: ${{ always() && github.actor != 'dependabot[bot]' }}

environment.yml

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+name: pudl-catalog
+channels:
+  - conda-forge
+  - defaults
+dependencies:
+  # Packages required for setting up the environment
+  - pip>=21,<23
+  - python>=3.8,<3.11
+  - setuptools<62
+
+  # Packages specified in setup.py that need or benefit from binary conda packages
+  # - geopandas>=0.9,<0.11
+  # - pygeos>=0.10,<0.13  # Python wrappers for the GEOS spatial libraries
+  # - python-snappy>=0.6,<0.7  # Supports snappy compression in pyarrow/parquet
+
+  # Packages not specified in setup.py that provide optional, helpful binaries:
+  # - numba>=0.55.1,<0.56  # numba speeds up some kinds of math by 100x
+
+  # Jupyter packages:
+  - jupyterlab>=3.2,<4
+  - jupyter-resource-usage>=0.5,<0.7
+  - nbconvert>=6,<7
+  - nbdime>=3.1,<4
+
+  # Use pip to install the package defined by this repo for development:
+  - pip:
+    - --editable ./[release,tests]