Code coverage for test.

.nycrc.json

@@ -0,0 +1,6 @@
+{
+	"exclude": [
+		"*/external/*",
+		"*/viewer/*"
+	]
+}

appveyor.yml

@@ -14,6 +14,8 @@ build_script:
 
 test_script:
   - npm run test
+  - npm run coverage
+  - npm run codecov
   
 artifacts:
   - path: build\final\package\*

package.json

@@ -10,11 +10,13 @@
 		"mocha": "^8.3.2",
 		"rewire": "^5.0.0",
 		"svgo": "^2.2.2",
-		"nyc": "^15.1.0"
+		"nyc": "^15.1.0",
+		"codecov": "^3.8.1"
 	},
 	"scripts": {
 		"test": "mocha test",
-		"coverage": "nyc mocha test",
+		"coverage": "nyc --reporter=lcov mocha test",
+		"codecov": "codecov",
 		"build": "python tools/create_package.py",
 		"update": "python tools/update_includes.py",
 		"svg": "python tools/optimize_svg_files.py"