Support for heapless #487
Description
Hi!
I was wondering if there would be any interest in a heapless feature for schemars?
I've previously opened an issue on the heapless repo but they told me it would be more relevant to open the feature request here, as heapless works both with and without an allocator, while schemars has no such opinion.
The integration would be done in a similar way to all the features in this crate, e.g. indexmap or smallvec.
Thoughts?