project: Remove usage and dependency tslib.

It was only used with the spread operator in the tests files,
so it's fine to embed the lib code instead of depending on tslib
as a peer dependency.

Author: microbit-carlos

package-lock.json

@@ -46,10 +46,8 @@
     "lint:fix": "npm run lint -- --fix",
     "docs": "typedoc --options config/typedoc.json"
   },
-  "peerDependencies": {
-    "tslib": ">=2.0.0"
-  },
   "dependencies": {},
+  "peerDependencies": {},
   "devDependencies": {
     "@babel/core": "^7.23.9",
     "@babel/polyfill": "^7.12.1",
@@ -69,7 +67,6 @@
     "rollup-plugin-sourcemaps": "^0.6.3",
     "shx": "^0.3.4",
     "ts-jest": "^29.1.2",
-    "tslib": "^2.6.2",
     "tslint": "^6.1.3",
     "tslint-config-prettier": "^1.18.0",
     "tslint-config-standard": "^9.0.0",
@@ -78,4 +75,4 @@
     "typedoc-neo-theme": "^1.1.1",
     "typescript": "^4.9.5"
   }
-}
+}

package.json

@@ -20,7 +20,7 @@
     "outDir": "dist/esm5",
     "resolveJsonModule": true,
     "useUnknownInCatchVariables": false,
-    "importHelpers": true
+    "importHelpers": false
   },
   "include": [
     "./src"