Push common search api parameters into SearchApi class

Push common search api parameters into SearchApi class

We have a number of parameters that are pretty much the same between
these different search api's. Lets make them actually the same by
sharing the definitions, and then letting individual classes tweak them
as needed by removing the offset, or adjusting the max limits as
necessary.

Change-Id: I6f987db8ecb63dc943b4d2518bfe3703c677448e