libm-v0.2.12

• Mark generic functions #[inline]
• Combine the source files for fmod
• Ensure all public functions are marked no_panic
• Add assembly version of simple operations on aarch64
• Add roundeven{,f,f16,f128}
• Add fminimum, fmaximum, fminimum_num, and fmaximum_num
• Eliminate the use of force_eval! in ceil, floor, and trunc
• Port the CORE-MATH version of cbrt
• Add fmaf128
• fma: Ensure zero has the correct sign
• Add scalbnf16, scalbnf128, ldexpf16, and ldexpf128
• Specify license as just MIT
• Add fmodf128
• Add fmodf16 using the generic implementation
• Add fminf16, fmaxf16, fminf128, and fmaxf128
• Add roundf16 and roundf128
• Add rintf16 and rintf128
• Add floorf16 and floorf128
• Add ceilf16 and ceilf128
• Add sqrtf16 and sqrtf128
• Simplify and optimize fdim (#442)
• Add fdimf16 and fdimf128
• Add truncf16 and truncf128
• Add fabsf16, fabsf128, copysignf16, and copysignf128
• Move some numeric trait logic to default implementations
• Add some more basic docstrings (#352)
• Add support for loongarch64-unknown-linux-gnu
• Add an "arch" Cargo feature that is on by default
• Rename the special_case module to precision and move default ULP
• Move the existing "unstable" feature to "unstable-intrinsics"

There are a number of things that changed internally, see the git log for a full
list of changes.