Big integer modular exponentiation (EIP-198) (#28503)
* big_mod_exp impl
* fix programs/sbf/Cargo.lock
* ComputeBudget impl
* update compute_budget
* compute_budget update
* fix build
* fix tests
* fix cargo clippy
* fix clippy
* fix bpf_loader dependency sorting
* fix sorting
* fix merge from master
* fix cargo fmt
* fix C-tests
* fix cargo fmt
* comments apply
* fix programs/sbf/Cargo.lock
* update compude_budget cost
* remove whitespaces
* fix cargo fmt
Co-authored-by: sinev-valentine <sinev-valentine@yandex.ru>