#2 Allow users to register their Impleos

[Rahul]

Overview
-------------
Celeritas comes with default Impleos which can perform crud operations. Well all operations cannot be performed using the default Impleos. Allow user to create and configure their own Impleos to facilitate them with the basic Infrastructure provided by Celeritas

Steps to Reproduce
---------------------------
There is no way to register and invoke user created Impleo

Actual Result
------------------
NA

Expected Result
-----------------------
Allow user to create, register and invoke their own Impleos. Allow them to override the default ones if necessary.