Added a field called ch to hold the channel. Ch can be set using Channel option function.
Created default channel const and setting ch field in newSettings. Started making changes
to other option functions, namely CodecOut, subsequently, wrote testing for it."
Added a file called gvctrl.go which holds all exported functions, including Set,
and the options available for use with Set. This file also holds important consts
and the settings struct. Also added a file called request.go, which houses 3
functions that are in charge of creating HTTP requests, firstly to get the log in
page from which a log in request body can be generated, then to submit the generated
log in request body, and then to submit the settings. Finally a utils.go file has
been added to house a few helper functions.
Saxon