Move quicksort-wasm to JS-style scoring

The usual changes: use `WasmEMCCBenchmark` class for running, rebuild and add build script, use iteration count that makes the Wall time not too high (<2s)

In this case, we spend a bit more time in the top-tier than before. However, that line item earlier ran a single <50ms iteration, and compiled for ~2ms, so I would argue it was very prone to noise, and it's good that we run it for longer.

Author: danleh

JetStreamDriver.js

@@ -1975,14 +1975,16 @@ const BENCHMARKS = [
         worstCaseCount: 2,
         testGroup: WasmGroup
     }),
-    new WasmLegacyBenchmark({
+    new WasmEMCCBenchmark({
         name: "quicksort-wasm",
         files: [
-            "./wasm/quicksort.js"
+            "./wasm/quicksort/build/quicksort.js",
+            "./wasm/quicksort/benchmark.js",
         ],
         preload: {
-            wasmBinary: "./wasm/quicksort.wasm"
+            wasmBinary: "./wasm/quicksort/build/quicksort.wasm"
         },
+        iterations: 50,
         testGroup: WasmGroup
     }),
     new WasmEMCCBenchmark({