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 77f8b96515.

* 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>

tests/test-backend-ops.cpp

@@ -6071,6 +6071,10 @@ static std::vector<std::unique_ptr<test_case>> make_test_cases_eval() {
         //add_test_bin_bcast(type, {3, 3, 2560, 1280}, {2, 1, 1, 1});
     }
 
+    // single in-place tests, especially important for WebGPU backend since kernels for in-place vs. not are different
+    test_cases.emplace_back(new test_bin_bcast(ggml_add_inplace, GGML_TYPE_F32, {16, 5, 4, 3}, {1, 1, 1, 1}, 16));
+    test_cases.emplace_back(new test_bin_bcast(ggml_mul_inplace, GGML_TYPE_F32, {16, 5, 4, 3}, {1, 1, 1, 1}, 16));
+
     // fusion
     test_cases.emplace_back(new test_bin_bcast(ggml_add, GGML_TYPE_F32, {10, 5, 4, 3}, {2, 1, 1, 1}, 2));
     test_cases.emplace_back(new test_bin_bcast(ggml_add, GGML_TYPE_F32, {16, 5, 4, 3}, {1, 2, 1, 1}, 3));