DateTime functions do not work properly against Object type

[ccoulson]

If I have a list<dictionary<string, object>> containing some date fields, using the ODATA date functions (day, year, hour...) against the object (which is a DATETIME) raises the following exception:

System.Object does not support the 'year' function.

[RichardWallis]

For ‘video’ and ‘audio’ see PR schemaorg/schemaorg#1774 which changes their domain to ‘Thing’

[danbri]

This is interesting data - many thanks for sharing. I would resist moving things like "price" directly onto /Product. /cc @mfhepp ... however it is still great usability feedback.

[RichardWallis]

See issue #7 for the context of the move from the main Schema.org issue tracker to this repository.

[VladimirAlexiev]

@mfhepp what do you think of having financial props on Product/Event in addition to Offer? You are the authority