feat: add C implementation for math/base/special/gamma-lanczos-sum
#3325
| Job | Run time |
|---|---|
| 1m 32s | |
| 1m 32s |
math/base/special/gamma-lanczos-sum
#3325
| Job | Run time |
|---|---|
| 1m 32s | |
| 1m 32s |