Skip FOAF test

[CasperWA]

Description:

Fixes #276

This simply skips the test, however, it should be moved to examples/ and some documentation should be written around this code to explain what the code is doing - as is suggested in the test's doc-string as well.

Type of change:

• Bug fix.
• New feature.
• Documentation update.

Checklist:

This checklist can be used as a help for the reviewer.

• Is the code easy to read and understand?
• Are comments for humans to read, not computers to disregard?
• Does a new feature has an accompanying new test (in the CI or unit testing schemes)?
• Has the documentation been updated as necessary?
• Does this close the issue?
• Is the change limited to the issue?
• Are errors handled for all outcomes?
• Does the new feature provide new restrictions on dependencies, and if so is this documented?

Comments:

This doesn't truly fix the issue, it merely avoids it for now - even without incorporating the suggested tests mentioned in #276. However, this kind of testing is already done in tests.test_load.test_load_rdfs().
So the actual fix for the current issue is to instead move this to examples/ and use it for documentation.