Add rawfile bindings #159

Job	Run time
Code Quality	14s
Build (stable)	12s
Build with minimal features (drawing)	11s
Build with API feature levels (api-10)	11s
Build (beta)	13s
Build with minimal features (hilog)	11s
Build Documentation	18s
Build with minimal features (napi)	12s
Build with API feature levels (api-11)	14s
Build with minimal features (hitrace)	11s
Build with API feature levels (api-12)	14s
Build (nightly)	11s
semver_checks	19s
Build with API feature levels (api-13)	12s
Build with minimal features (native_buffer)	11s
Build with minimal features (native_image)	12s
Build with minimal features (native_window)	15s
Build with minimal features (xcomponent)	17s
Build with minimal features (vsync)	16s
Result	1s
	4m 15s

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