Updated Go installation and added in built parser files.

While the parser files can be built by the user, there may
be instances where the user doesn't have the ability to do so.
For the latter case, they have been added.

    modified:   drivers/golang/go.mod
    modified:   drivers/golang/go.sum

    new file:   drivers/golang/parser/age_base_listener.go
    new file:   drivers/golang/parser/age_base_visitor.go
    new file:   drivers/golang/parser/age_lexer.go
    new file:   drivers/golang/parser/age_listener.go
    new file:   drivers/golang/parser/age_parser.go
    new file:   drivers/golang/parser/age_visitor.go

This addresses issue apache#1455