augstate function for full-state feedback functionality.

[garazha-ilya]

I want to create PR for adding MATLAB-like function augstate. It is helpful in scenarios like this.

[baggepinnen]

We already have the function add_output that does this

[garazha-ilya]

I tried to use non-Latex documentation, but it was weird. I tried using Documenter to add Latex documentation to a webpage, but not to the source code. However, Documenter created a lot of errors.

[garazha-ilya]

We already have the function add_output that does this

Could you please add a reference to "augstate" in the documentation so that when you search the Internet for "augsatate julia", the link would lead to this function?

[baggepinnen]

b39d0e8