Time info incomplete when using orchestrator

[bootstraponline]

Shard time is calculated by summing all test durations together. FTL doesn't report orchestrator setup/teardown. That means individual test times and overall shard times used by flank are incorrect.

• Work with FTL to get valid time data from the API
• Update sharding algorithm to use real time values

Example JUnit XML result with 3s per test overhead:

<testsuite name="" tests="2" failures="0" errors="0" skipped="0" time="8s" timestamp="2019-05-13T16:03:42" hostname="localhost">
    <testcase name="test1" classname="com.example.ExampleTest" time="1.0"/>
    <testcase name="test2" classname="com.example.ExampleTest" time="1.0"/>
</testsuite>

Total time in the JUnit XML is valid <testsuite time="8s". Individual test times don't include overhead.