Adding codecov and .npmignore

Author: dinoknowsbetter

.github/workflows/coverage.yml

@@ -0,0 +1,26 @@
+name: HyperMath CodeCov
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  run:
+    name: 'Build, '
+    runs-on: ubuntu-latest
+    steps:
+      - name: 'Checkout Repository'
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: 'Setup Node'
+        uses: actions/setup-node@v4
+      - name: 'Install dependencies'
+        run: npm install
+      - name: 'Run tests'
+        run: npm run test
+      - name: 'Upload coverage to Codecov'
+        uses: codecov/codecov-action@v4
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}

.npmignore

@@ -0,0 +1,6 @@
+# .npmignore
+src/
+test/
+.eslintrc
+.prettierrc
+tsconfig.json