In preparation for #306 and #303, we should extend the component benchmarks.

A decent list of functions to cover would be the ones for which other implementations have native implementations:

• poly_ntt
• poly_invntt_tomont
• poly_pointwise_montgomery
• polyvecl_pointwise_acc_montgomery
• poly_reduce
• poly_caddq
• poly_add
• poly_sub
• poly_shiftl
• poly_power2round
• poly_decompose
• poly_make_hint
• poly_use_hint
• poly_chknorm
• rej_uniform
• rej_eta
• polyz_unpack
• polyw1_pack
• polyt1_unpack