50805157 add the filter paper resource to lims laboratory app

I also did the following:
- added rake to the gemspec
- added spec and db rake task

So, Travis can build it now.

I also added the transfer operations to this pull request:
- transfers made from 1 or more locations on a filter paper to 1 or
more tubes
-­ transfers made from 1 or more locations on a filter paper to 1 or
more wells on a plate

I also made a transfer from multiple Filter Papers to 1 or more tubes/wells operations.

Specs are passed with Travis, too.