[FEA] Explore Jitify v2 Support

[cwharris]

https://github.com/NVIDIA/jitify/blob/jitify2/jitify2_user_guide.md

[cwharris]

cudatoolkit=11.2 is being published to conda-forge currently.

conda-forge/cudatoolkit-feedstock#46

[github-actions]

This issue has been labeled inactive-30d due to no recent activity in the past 30 days. Please close this issue if no further response or action is needed. Otherwise, please respond with a comment indicating any updates or changes to the original issue and/or confirm this issue still needs to be addressed. This issue will be labeled inactive-90d if there is no activity in the next 60 days.

[cwharris]

Jitify v1 allows headers to be provided the form of a string formatted liike <header_name>\n<header_source>. Jitify v2 expects both the header name and source to be included as a string map. We'll need to separate out the header name and header source from the <header_name>\n<header_source> format string to populate the string map so jitify v2 will understand it.

This can be done by changing the existing jit'd header file sources to exclude the name, or by extracting it at runtime. The former option seems more straightforward.

[vyasr]

@cwharris we can close this now that #7372 is merged, right?

[cwharris]

@vyasr not yet, we're still looking in to some issues.

[cwharris]

#7919