CB- 6958. Port camera test to plugin-test-framework

Ported tests  from mobile-spec (which are written in jasmine 1.3) in
jasmine 2.0.
Added:
New js-module named tests to plugin.xml
Folder with tests working on jasmine 2.0

This changes are aimed to work with the new plugin-test framework.
Yes, it means that the tests are going to be added on every project that uses this plugin, however, this PR it should have to be addressed to another branch(cdvtest, as it is for the plugin-device, which already has the tests for the plugin-test framework.
https://github.com/apache/cordova-plugin-device/tree/cdvtest
Are you able to create the branch cdvtest for this repository?
Is there any way to correctly address this PR to that branch once created?

Thanks for the feedback.