[libc][math][c23] Implement C23 math function log10p1f16

[yuninxia]

This issue is for implementing the log10p1f16 function for the _Float16 type as specified by the C23 standard, within LLVM's libc implementation.

This function calculates log10(1 + x).

This work contributes to the larger goal tracked in issue #95250 ([gsoc2024][libc][math][c23] Implement _Float16 higher math functions).

[llvmbot]

@llvm/issue-subscribers-libc

Author: Yuning Xia (yuninxia)

This issue is for implementing the `log10p1f16` function for the `_Float16` type as specified by the C23 standard, within LLVM's libc implementation.

This function calculates log10(1 + x).

This work contributes to the larger goal tracked in issue #95250 ([gsoc2024][libc][math][c23] Implement _Float16 higher math functions).

[yuninxia]

Hi @overmighty, @lntue,

I would like to work on implementing log10p1f16 for this issue.

Thanks!