feat: add hardware concurrency hooks

hardware-concurrency.js

@@ -0,0 +1,23 @@
+let unsupported;
+
+if (typeof navigator !== "undefined" && "hardwareConcurrency" in navigator) {
+    unsupported = false;
+} else {
+    unsupported = true;
+}
+
+let initialHardwareConcurrency;
+
+if (!unsupported) {
+    initialHardwareConcurrency = {
+        numberOfLogicalProcessors: navigator.hardwareConcurrency
+    };
+} else {
+    initialHardwareConcurrency = { unsupported: true };
+}
+
+const useHardwareConcurrency = () => {
+    return { ...initialHardwareConcurrency };
+};
+
+export { useHardwareConcurrency };