Ensure more functions do not panic

[ankane]

This PR:

• adds #[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)] to more functions
• removes panics from exp10 and exp10f

This leaves frexp and frexpf as the only remaining functions that can panic (wasn't able to figure out how to fix).

Edit: it looks like j1f (and possibly j1 can also panic)

Edit 2: Not sure why, but it looks like the tests didn't catch integer division in lgamma_r/lgammaf_r

[Amanieu]

j1f and j1 seem to have indexing which might be calling panics.

[ankane]

Quick update: From what I can tell, the panics for frexp/frexpf and j1/j1f are due to recursion. The tests pass for j1 but not j1f since j1f has this additional test. Other functions with recursion like j0 and j0f also likely can panic, but the tests don't catch it.

Edit: I've removed all the j* functions for this PR.

[Amanieu]

Thanks!

[ankane]

Thanks @Amanieu!