[GEARPUMP-333] Fix examples assembling
[GEARPUMP-333] Fix examples assembling

Author: manuzhang <owenzhang1990@gmail.com>

Closes #203 from manuzhang/fix_example_dep.

manuzhang/incubator-gearpump,manuzhang/incubator-gearpump,manuzhang/incubator-gearpump,manuzhang/incubator-gearpump,manuzhang/incubator-gearpump