extract canvas statsd gem

fixes: CNVS-11605

Change-Id: I44d708d77014d6c4d0f8d0b2f7bcedcdeb307829
Reviewed-on: https://gerrit.instructure.com/31261
QA-Review: August Thornton <august@instructure.com>
Tested-by: Jenkins <jenkins@instructure.com>
Reviewed-by: Nick Cloward <ncloward@instructure.com>
Product-Review: Nick Cloward <ncloward@instructure.com>