Bump internal SPI version to 37.
Bump internal SPI version to 37.

sambler/oiio,OpenImageIO/oiio,scott-wilson/oiio,micler/oiio,lgritz/oiio,mcanthony/oiio,OpenImageIO/oiio,cwilling/oiio,sambler/oiio,bdeluca/oiio,lgritz/oiio,mcanthony/oiio,cwilling/oiio,micler/oiio,YangYangTL/oiio,mcanthony/oiio,sambler/oiio,mcanthony/oiio,bdeluca/oiio,OpenImageIO/oiio,cwilling/oiio,YangYangTL/oiio,scott-wilson/oiio,micler/oiio,micler/oiio,sambler/oiio,lgritz/oiio,bdeluca/oiio,YangYangTL/oiio,scott-wilson/oiio,lgritz/oiio,scott-wilson/oiio,bdeluca/oiio,OpenImageIO/oiio,YangYangTL/oiio,cwilling/oiio