Minimize ba

[ZuseZ4]

ninja bench-ba-reverse
3 incorrect and 12 correct entries are alternating.
Which is suspicious because we fill it using
for (int j = 0; j < BA_NCAMPARAMS + 3 + 1; j++) with the constant = 11, thus 11+3+1=15
the error is in the first 3 fields of the 15 entries, thus corresponds exactly to the rot subfield

Enzyme get's the following code wrong:
let w = rot.map(|v| v * theta_inverse);
A for loop over
w[i] = rot[i] * theta_inverse; gives the correct derivatives.