Float: Introduce floating point api zero

[Incarnation-p-lee]

• The is zero api is introduced.
• Add test case for half, single, and double floating point.
• Add zero to the interface.

Signed-off-by: Pan Li pan2.li@intel.com

[github-actions[bot]]

Test Results

    9 files  ±0     20 suites  ±0   0s :stopwatch: ±0s   641 tests ±0    641 :white_check_mark: ±0  0 :zzz: ±0  0 :x: ±0  2 053 runs  ±0  2 052 :white_check_mark: ±0  1 :zzz: ±0  0 :x: ±0 

Results for commit 75e27bc3. ± Comparison against base commit eee27f0f.

[Alasdair]

Thanks!