Changes to Search for suggested addresses for the given terms

for the query request parameter channel, default value was changed from 0 to All

the items/relativeScore response's property format changed from int32 to no format for status 200

for the query request parameter pageSize, the format was generalized from int32 to no format

added the non-success response with the status 400

added the non-success response with the status 404

added the non-success response with the status 500