* common error model for serialization of BLS signatures and KZG objects
* [KZG] add Ethereum's test vectors [skip ci]
* dump progress on KZG
* Stash: trusted setup generator
* implement cache optimized bit-reversal-permutation
* Add generator for the Ethereum test trusted setups
* implement naive deserialization for the trusted setup interchange format
* implement verify_kzg_proof
* Add test skeleton of verify KZG proof
* rebase import fixes
* create a codecs.nim file for hex/base64 and other encoding conversions
* improve maintenance/readability of hex conversion
* add skeleton of constant-time base64 decoding
* use raw casts
* use raw casts only for same size types
