Create selectively-leverage-eos-vm-oc.md

[bhazzard]

Proposal for EOS VM OC initiative

[greg7mdp]

@spoonincode Regarding using OC automatically when applying a block. Suppose a block contains many small transaction using various contracts unseen before. For a node just trying to follow the chain, using OC would require compiling all the contracts used in the block, right? Could this cause an issue for nodes getting behind on following the chain?

Wondering if we should not use baseline, but OC if account is eosio. for applying blocks as well even for non-producer nodes instead of OC.

[heifner]

@greg7mdp it only scales up to OC if the OC version is ready, otherwise it uses baseline.

[greg7mdp]

@greg7mdp it only scales up to OC if the OC version is ready, otherwise it uses baseline.

Thanks, makes sense! Should it be specified in the doc, as this is probably not always the case? Or is it?