Adding Enviroment Variable Helpers
This PR introduces a class to read Variables from the Environment. It can be used in the different backends to ease development.
The class is currently templated over the Type the programmer expects to get from the ENV variable. The class relies on the std::optional<T> fromEnvString(const std::string &env_string)
function to convert the string to the T
type
Edited by VALENTIN SEITZ