Add some LocalArray.copy tests.
Add simple array value tests.
Add a simple docstring to LocalArray.copy.
Factor out an assertion method for testing.
Fix astype and add tests.
Remove a skipped test.
Partially fix LocalArray.view().

Raise NotImplemented in a case that didn't work properly.
Add some simple docstrings and a TODO comment.
Merge remote-tracking branch 'origin/bugfix/fix-localarray-copy' into protocol-example-plots-dimdata