Comparison of max pool benchmark between CPU and GPU

[Lewuathe]

Add benchmark of max pool CPU operation as well as matmul benchmark to compare CPU and GPU.

---

This change is 

[nsthorat]

Review status: 0 of 2 files reviewed at latest revision, 1 unresolved discussion, some commit checks failed.

---

demos/benchmarks/max_pool_cpu_benchmark.ts, line 44 at r1 (raw file):

  const start = performance.now();
  for (let i = 0; i < OP_RUNS; i++) {
		math.maxPool(x as Array3D, fieldSize, stride, zeroPad);

use spaces instead of indents here and everywhere

---

Comments from Reviewable

[Lewuathe]

Review status: 0 of 2 files reviewed at latest revision, 1 unresolved discussion.

---

demos/benchmarks/max_pool_cpu_benchmark.ts, line 44 at r1 (raw file):

Previously, nsthorat (Nikhil Thorat) wrote…

use spaces instead of indents here and everywhere

Thanks. I updated.

---

Comments from Reviewable

[nsthorat]

---

Reviewed 1 of 2 files at r1, 1 of 1 files at r2.
Review status: all files reviewed at latest revision, 1 unresolved discussion.

---

Comments from Reviewable