Support Steam client logins alongside Web API bindings

[garhow]

Read the documentation for the steam Python package for reference of functionality. Any ideas??

Potential implementation concept?

pub struct SteamClient {
    username: String,
    password: String,
}

impl SteamClient {
    pub fn new(
        username: &str,
        password: &str
    ) -> SteamClient {
        // todo
    }
}

[marcohoovy]

This should be enabled by a feature flag