Use Makefile instead to add consumer to our CI

[disa6302]

I'd highly recommend to use Makefile instead so we can even add this to our CI.

To add this to the CI, you just need to create a Makefile that has "test" as the target, and add the directory path to the target in .travis.yaml below:

https://github.com/aws-samples/amazon-kinesis-video-streams-demos/blob/e246e81370751088cb82b32be6e5176bb413d0f7/.travis.yml#L17

It's definitely not the best test, but it can add some sanity check at least.

_Originally posted by @lherman-cs in https://github.com/aws-samples/amazon-kinesis-video-streams-demos/pull/64#discussion_r505072363_

[disa6302]

The makefile works on systems. However, travis has a log limit https://docs.travis-ci.com/user/common-build-problems/#log-length-exceeded, which causes a problem since mvn package generates a lot of logs. This error can be solved using mvn package -q which will set verbosity to error. However, due to no logs for prolonged period, travis build fails with the following error: Build times out because no output was received.

We need to look into the best way to add the consumer-java to .travis.yml.

[lherman-cs]

It's going to be very silly to do this, but maybe we can add something like,

while 1; do echo "Processing" && sleep 1; done &

[disa6302]

Yes. I was thinking something along the same lines. But thought of this as a last ditch effort after exhausting all other options :/