Most builtin programs do not consume compute units

[jstarry]

Problem

BPF programs use a compute meter while processing instructions but builtin native programs don't so they do not consume any compute units for processing instructions.

Proposed Solution

Consume a reasonable amount of compute units for each builtin program instruction

tag @jackcmay @taozhu-chicago

[tao-stones]

cost_model counts native program costs separately from BPF programs. It gives static CUs to some native programs, defined at here.

If native programs will consume similar CUs, then cost_model can be simplified as it no longer need to distinguish native programs from BPF.

[tao-stones]

#30702 has made all builtin to consume static CUs. This issue should be considered as addressed.