task: tidy ci test env away from project root

This change moves the ci.test.env file into the tests/ subdirectory in an
effort to reduce the number of files in the project root.  The package.json
metadata is updated to enable continuous integration tools to continue to work
as expected.

package.json

@@ -29,14 +29,14 @@
     "start": "node lib/server/server.js",
     "test": "env-cmd -f ./my.test.env mocha --require ./tests/hooks.js -exit ./tests/*.test.js",
     "test-single": "env-cmd -f ./my.test.env mocha --require ./tests/hooks.js --exit ./tests/$TEST.test.js",
-    "test-ci": "env-cmd -f ./ci.test.env nyc --reporter=lcov --reporter=text-summary mocha --require ./tests/hooks.js --exit ./tests/*.test.js",
+    "test-ci": "env-cmd -f ./tests/ci.test.env nyc --reporter=lcov --reporter=text-summary mocha --require ./tests/hooks.js --exit ./tests/*.test.js",
     "env": "env",
     "postinstall": "webpack --mode production --config webpack/webpack.config.js && npm run-script generate-keys",
     "bundle": "webpack --mode production --config webpack/webpack.config.js && npm run-script generate-keys",
     "bundle-dev": "webpack --mode development --config webpack/webpack.config.js && npm run-script generate-keys",
     "bundle-analyzer": "webpack --mode development --config webpack/webpack.config.js --profile --json > stats.json && webpack-bundle-analyzer stats.json",
     "generate-keys": "node bin/generateRandomString.js >tmp/randomString",
-    "coverage": "cat ./coverage/lcov.info | env-cmd -f ./ci.test.env codacy-coverage",
+    "coverage": "cat ./coverage/lcov.info | env-cmd -f ./tests/ci.test.env codacy-coverage",
     "dev": "env-cmd -f ./my.env nodemon --inspect lib/server/server.js 0.0.0.0",
     "dev-test": "env-cmd -f ./my.devtest.env nodemon --inspect lib/server/server.js 0.0.0.0",
     "prod": "env-cmd -f ./my.prod.env node lib/server/server.js 0.0.0.0",