Move Golang source code generated from '.proto' files to new subdirectory
go/streaming_protobufs to be in line with the 'streaming_protobufs' Golang
package name.
Signed-off-by: Timo Tietavainen <timo.tietavainen@nokia.com>
Change-Id: I931b20170ac7be90ac3032150fd67ecc1fd42704