Fixes in evaluate and pow

[lbenet]

No description provided.

[lbenet]

This PR reduces marginally some allocations when using pow or ^, in some cases reaching 10% of improvement. It also solves an issue appearing in TaylorModels with pow. Tests pass, so I merge this.

As a side comment, I note a dramatic performance hit from v1.10 to v1.11...

[PerezHz]

This PR reduces marginally some allocations when using pow or ^, in some cases reaching 10% of improvement. It also solves an issue appearing in TaylorModels with pow. Tests pass, so I merge this.

This PR looks pretty neat! Just o try to understand it better, did you find allocations happening in pow!? Or were the allocations coming from pow (without bang !)?

[lbenet]

I think it was some sort of type unstability somewhere in the mess of pow, and some small fixes in pow!. But I see no dramatic improvements in time.

[lbenet]

@PerezHz @LuEdRaMo I didn't check the consequences on NEOs.jl or PlanetaryEphemeris.jl; can you check it? (Though it's a bit late, I could revert the merge commit...)