Update endpoints to $cqfm.package

[sarahmcdougall]

Summary

The published version of the measure repository service now specifies $cqfm.package as the endpoint for the package operation. This PR changes instances of $package with $cqfm.package.

New behavior

No new features. Changes the package endpoint, so servers supporting $cqfm.package should now pass package-related tests. Servers that use $package should now fail on package-related tests.

Code changes

Changed instances of $package to $cqfm.package in several files under the lib and spec directories.

Testing guidance

• Run rspec to run the rspec tests
• Check that all instances of $package have been changed over
• Follow the setup instructions in the README to start the test kit. Then run against the locally running measure repository service on the cqfm-package branch. Check that the package-related tests pass. If using the measure repository setup docs for example input values, you may run into some failing tests related to the identifier field. This is unrelated to the package functionality.
  MeasureRepoServiceAndTestKitSetup.pdf

[elsaperelli]

Lgtm!

[hossenlopp]

All good. Tested with and without this update.