gtest genesis new format (!168)

* fix smith certification validity

* get values of parameters

* tuxmain review

* add checks and improve formatting

* improve genesis parsing

adds info

* fix json with new format

* fix warnings

* new gtest genesis format

* get build working with gtest feature

`cargo build --features gtest --no-default-features`

* update lib.rs

* update cargo.toml

* add readme for runtimes