Integrate requested changes, improve scalar operations, address linux aarch64

We've incorporated the changes you've requested for scalar operations.

**Testing**
- Apple silicon M1 native (arm64 / aarch64) -- No test failures
- Apple silicon M1 Rosetta (x86_64) -- No new test failures
- iMacPro1,1 (AVX512F) -- No test failures
- Ubuntu VM (aarch64) -- No test failures

**Benchmarks**
Again, Apple silicon M1 native (arm64 / aarch64) looks similar to original patch (comparison below)

Also, x86_64 (both Apple silicon M1 Rosetta and iMacPro1,1 AVX512F) have varying results.  Some are better.  Some are worse.  Compared to previous re-org, we see improvements though.

Apple silicon M1 native (arm64 / aarch64) comparison to previous commit:
```
       before           after         ratio
     [8b01e839]       [18565b27]
     <gh-issue-17989/feedback/round-1>       <gh-issue-17989/feedback/round-2>
+       176±0.2μs          196±1μs     1.11  bench_function_base.Sort.time_sort('heap', 'int16', ('ordered',))
+       234±0.2μs          261±1μs     1.11  bench_ufunc_strides.Unary.time_ufunc(<ufunc 'exp'>, 2, 4, 'f')
+      43.4±0.4μs       48.3±0.4μs     1.11  bench_function_base.Sort.time_sort('quick', 'int64', ('uniform',))
+      22.5±0.1μs       25.1±0.3μs     1.11  bench_shape_base.Block2D.time_block2d((512, 512), 'uint8', (2, 2))
+     4.75±0.05μs      5.28±0.07μs     1.11  bench_ma.UFunc.time_scalar(True, True, 1000)
+       224±0.2μs        248±0.9μs     1.11  bench_ufunc_strides.Unary.time_ufunc(<ufunc 'exp2'>, 1, 1, 'f')
+       233±0.5μs          258±1μs     1.11  bench_ufunc_strides.Unary.time_ufunc(<ufunc 'exp'>, 4, 2, 'f')
+     8.81±0.02μs       9.72±0.1μs     1.10  bench_shape_base.Block2D.time_block2d((32, 32), 'uint16', (2, 2))
+      8.71±0.1μs       9.58±0.3μs     1.10  bench_indexing.ScalarIndexing.time_assign_cast(2)
+     96.2±0.03μs          105±3μs     1.09  bench_ufunc_strides.Unary.time_ufunc(<ufunc 'fabs'>, 1, 1, 'd')
+      20.2±0.1μs       22.0±0.5μs     1.09  bench_shape_base.Block.time_block_simple_row_wise(100)
+         469±4μs          510±7μs     1.09  bench_ufunc_strides.Unary.time_ufunc(<ufunc 'cos'>, 2, 1, 'd')
+     43.9±0.02μs         46.4±2μs     1.06  bench_function_base.Median.time_odd_inplace
+        4.75±0μs       5.02±0.2μs     1.06  bench_itemselection.Take.time_contiguous((2, 1000, 1), 'raise', 'int64')
-     16.4±0.07μs       15.6±0.4μs     0.95  bench_ufunc.UFunc.time_ufunc_types('left_shift')
-         127±6μs        120±0.1μs     0.94  bench_ufunc.UFunc.time_ufunc_types('deg2rad')
-      10.9±0.5μs      10.3±0.01μs     0.94  bench_function_base.Sort.time_sort('merge', 'int64', ('reversed',))
-         115±5μs        108±0.2μs     0.94  bench_function_base.Bincount.time_bincount
-      17.0±0.4μs      15.9±0.03μs     0.94  bench_ufunc.UFunc.time_ufunc_types('right_shift')
-        797±30ns        743±0.5ns     0.93  bench_ufunc.ArgParsingReduce.time_add_reduce_arg_parsing((array([0., 1.]), axis=0))
-        18.4±1μs      17.2±0.04μs     0.93  bench_core.CountNonzero.time_count_nonzero_multi_axis(3, 10000, <class 'bool'>)
-         241±7μs        224±0.3μs     0.93  bench_ufunc_strides.Unary.time_ufunc(<ufunc 'exp2'>, 2, 1, 'f')
-         105±1μs      96.7±0.02μs     0.92  bench_ufunc_strides.Unary.time_ufunc(<ufunc 'deg2rad'>, 2, 4, 'f')
-      23.3±0.2μs      21.4±0.02μs     0.92  bench_lib.Pad.time_pad((1, 1, 1, 1, 1), 1, 'edge')
-        833±20μs          766±2μs     0.92  bench_ufunc_strides.Unary.time_ufunc(<ufunc 'arctanh'>, 1, 1, 'd')
-        86.8±4μs       79.5±0.4μs     0.92  bench_ufunc.UFunc.time_ufunc_types('conjugate')
-      2.58±0.1μs         2.36±0μs     0.91  bench_ufunc.CustomScalar.time_divide_scalar2(<class 'numpy.float32'>)
-         102±4μs       92.8±0.7μs     0.91  bench_ufunc.UFunc.time_ufunc_types('logical_not')
-      46.6±0.4μs      42.1±0.07μs     0.90  bench_ufunc_strides.Unary.time_ufunc(<ufunc 'absolute'>, 4, 1, 'd')
-       158±0.7μs       142±0.07μs     0.90  bench_lib.Pad.time_pad((4, 4, 4, 4), 1, 'linear_ramp')
-         729±6μs          657±1μs     0.90  bench_ufunc_strides.Unary.time_ufunc(<ufunc 'arccos'>, 4, 4, 'f')
-      63.6±0.9μs         56.2±1μs     0.88  bench_ufunc_strides.Unary.time_ufunc(<ufunc 'ceil'>, 2, 4, 'd')
-        730±40μs          605±3μs     0.83  bench_lib.Pad.time_pad((1024, 1024), 1, 'reflect')

SOME BENCHMARKS HAVE CHANGED SIGNIFICANTLY.
PERFORMANCE DECREASED.
```

0 files changed, 0 insertions, 0 deletions