are the ones that may be needed by multiple packages in ong.
The github.com/komuw/ong/internal/clientip package is need by both github.com/komuw/ong/middleware & github.com/komuw/ong/cookie.
So, we cannot create clientip inside ong/middleware since ong/cookie cannot import ong/middleware(middleware already imports cookie.)
The github.com/komuw/ong/internal/octx package is need by both github.com/komuw/ong/log, github.com/komuw/ong/middleware & github.com/komuw/ong/server
The github.com/komuw/ong/internal/finger package is need by both github.com/komuw/ong/middleware & github.com/komuw/ong/server