[SPARK-9030] [STREAMING] Add Kinesis.createStream unit tests that actual sends data

Current Kinesis unit tests do not test createStream by sending data. This PR is to add such unit test. Note that this unit will not run by default. It will only run when the relevant environment variables are set.

Author: Tathagata Das <tathagata.das1565@gmail.com>

Closes #7413 from tdas/kinesis-tests and squashes the following commits:

0e16db5 [Tathagata Das] Added more comments regarding testOrIgnore
1ea5ce0 [Tathagata Das] Added more comments
c7caef7 [Tathagata Das] Address comments
a297b59 [Tathagata Das] Reverted unnecessary change in KafkaStreamSuite
90c9bde [Tathagata Das] Removed scalatest.FunSuite
deb7f4f [Tathagata Das] Removed scalatest.FunSuite
18c2208 [Tathagata Das] Changed how SparkFunSuite is inherited
dbb33a5 [Tathagata Das] Added license
88f6dab [Tathagata Das] Added scala docs
c6be0d7 [Tathagata Das] minor changes
24a992b [Tathagata Das] Moved KinesisTestUtils to src instead of test for future python usage
465b55d [Tathagata Das] Made unit tests optional in a nice way
4d70703 [Tathagata Das] Added license
129d436 [Tathagata Das] Minor updates
cc36510 [Tathagata Das] Added KinesisStreamSuite