Start organising the kataras/go-*package which are relative to the Iris
project. The kataras/go-*package will be exists and their features will
be adapted to Iris every 2 months, as we say at readme, iris-relative
packages should be tested for a long time before adapted to Iris.
With this way we have stability, code readability(the developer can
easly navigate to iris' code without need to move across different
kataras/ projects).
Former-commit-id: db291faaf59d4f53f14ce5800fde805f56c8b802
