Commented Feature: Add a CustomParameters string to all QueryParameters [2518]

QueryParameters should all inherit from a class that contains a CustomParameter property that can be used to add Parameters that have not yet been implemented by Tweetinvi
Comments: Associated with changeset 42106: Version 0.9.6.0
- Added CustomRequestParameters to all the existing RequestParameters, this feature allow users to add new or not implemented parameters.

- Renamed Search.GenerateParameter into Search.CreateParameter to keep the API naming consistent.
- Renamed Message.Generate...Paramerters into Message.Create...Parameters to keep the API naming consistent.