Array creation with strings for filters, serializer, compressors

[brokkoli71]

• fixes Array creation should take strings for filters, serializer, compressors #2705

TODO:

• Add unit tests and/or doctests in docstrings
• Add docstrings and API docs for any new/modified user-facing classes and functions
• New/modified features documented in docs/user-guide/*.rst
• Changes documented as a new file in changes/
• GitHub Actions have all passed
• Test coverage is 100% (Codecov passes)

[d-v-b]

i don't think this kind of error message is the best outcome here. it would be better to have an error like "you provided the string foo, which specifies codec fooCodec, but that codec cannot be specified by a string because it takes a required configuration. use either the dict form of fooCodec, or pass in a concrete fooCodec instance instead"

[d-v-b]

i think this is a good idea, and for codecs that have simple defaults (blosc and gzip and most conventional compressors), it's very user-friendly. but IMO we need to give users a very clear error when they use a string name for a codec that takes required parameters.