Deliver sbe.h via publicly available versioned SBE artifacts

[vontikov]

Please pack sbe.h and license information into sbe-all.jar.
This would allow delivery of generated CPP codecs together with the SBE header they depend on, when the SBE Tool is used as a part of a Gradle project for example, without necessity of having SBE local repository during the build: sbe.h and license will be extracted directly from the jar.
This would also guarantee that the exact sbe.h version is used with the codecs.

[tmontgomery]

Sounds good to me. Adding sbe.h and license to resources would be fine. Also, I would like it if sbe.h was generated for each codec instead of being a central one that had to be managed.

[mjpt777]

I think also makes sense to add the C++ OTF code.