[20.01] Lower tool id case while populating resource params

[eancelet]

What did you do?

On startup, when Galaxy populates the tool form with resources, the tool id is now converted to lowercase letters to match what is done on job_conf file parsing.

Why did you make this change?

It was impossible to add resources to a tool with uppercase letters in the id.
#11709

How to test the changes?

(select the most appropriate option; if the latter, provide steps for testing below)

• I've included appropriate automated tests.
• This is a refactoring of components with existing test coverage.
• Instructions for manual testing are as follows:
  1. [add testing steps and prerequisites here if you didn't write automated tests covering all your changes]

License

• I agree to license these contributions under Galaxy's current license.
• I agree to allow the Galaxy committers to license these and all my past contributions to the core galaxy codebase under the MIT license. If this condition is an issue, uncheck and just let us know why with an e-mail to galaxy-committers@lists.galaxyproject.org.

[mvdbeek]

I've run the tests against dev and they're all passing. Thanks again @eancelet!

[eancelet]

Thank you @mvdbeek. I didn't know what to do.