GGML WebGPU: Support for ADD, MUL, RMS_NORM, GET_ROWS operators (#16018)

* Add paramater buffer pool, batching of submissions, refactor command building/submission

* Add header for linux builds

* Free staged parameter buffers at once

* Format with clang-format

* Fix thread-safe implementation

* Use device implicit synchronization

* Update workflow to use custom release

* Remove testing branch workflow

* some f32 tests passing

* Disable set_rows until it's implemented

* f32 add all tests passing

* Begin work on set_rows

* Work on set rows

* Add error buffers for reporting unsupported SET_ROWS indices

* Remove extra comments

* Add templated addition, clean up code

* Get addition and multiplication working

* Implement rms_norm

* Add get_rows implementation

* Add new get_rows files

* Refactor use of wg size entry

* Fix compilation

* Try manually unrolled q4_0 quant

* Revert "Try manually unrolled q4_0 quant"

This reverts commit 77f8b96515f7e640ae4b0e44f066321fbc4a6166.

* Move to constant max wg size

* Check for tensor size in supports_op

* Vectorize f32 and change default workgroup size

* Move f32 get_rows from < 4 to % 4 != 0

* fix linter errors

* Add in-place tests

---------

Co-authored-by: Neha Abbas <nehaabbas@ReeseLevines-MacBook-Pro.local>

ggml/src/ggml-webgpu/wgsl-shaders/add.tmpl.wgsl

@@ -0,0 +1,44 @@
+#define(VARIANTS)
+
+[
+  {
+    "REPLS": {
+      "TYPE" : "f32",
+    }
+  },
+  {
+    "REPLS": {
+      "TYPE" : "f16",
+    }
+  }
+]
+
+#end(VARIANTS)
+
+#define(SHADER)
+
+enable f16;
+
+#include "binary_head.tmpl"
+
+@group(0) @binding(0)
+var<storage, read_write> src0: array<{{TYPE}}>;
+
+@group(0) @binding(1)
+var<storage, read_write> src1: array<{{TYPE}}>;
+
+@group(0) @binding(2)
+var<storage, read_write> dst: array<{{TYPE}}>;
+
+@group(0) @binding(3)
+var<uniform> params: Params;
+
+override wg_size: u32;
+@compute @workgroup_size(wg_size)
+fn main(@builtin(global_invocation_id) gid: vec3<u32>) {
+    if (gid.x < params.ne) {
+        dst[params.offset_dst + gid.x] = src0[params.offset_src0 + gid.x] + src1[params.offset_src1 + src1_index(gid.x)];
+    }
+}
+
+#end(SHADER)