Compatibility with Go modules

[lcmen]

Hi!
I'm new to Go so please be patient with my question :).

I really like your approach to the problem (generating functions instead of relying on reflection). However in order to use this library within the project (created with go modules) I had to do a few tricks:

1. Clone the repo manually to $GOPATH/src/github.com/go-dash/slice

2. Add go.mod file to the root of the repo with a following content:

   module github.com/go-dash/slice
   

3. Modify go.mod file in my project:

   replace github.com/go-dash/slice v0.0.0 => ../../../github.com/go-dash/slice
   
   require github.com/go-dash/slice v0.0.0
   

After that it finally worked. Are there better ways to use this library with go modules based projects?