* zk-token-sdk: change G and H to static and optimize pedersen arithmetic
* zk-token-sdk: remove unnecessary copy in elgamal arithmetic
* zk-token-sdk: fix elgamal tests for new syntax
* zk-token-sdk: use lazy-static for pedersen base
* zk-token-sdk: add dlog test for elgamal decryption
* zk-token-sdk: reflect changes in elgamal in the rest of the sdk
* zk-token-sdk: rustfmt and clippy
* zk-token-sdk: some documentation for elgamal and pedersen
* zk-token-sdk: minor remove whitespace
* zk-token-sdk: update lock files
* zk-token-sdk: change random() to new_rand()
* zk-token-sdk: add explanation for suppressing clippy::op_ref