added minimal support for es6 import_style

[safanaj]

Due to our limited support resources, we are focusing our attention on small bug fixes that have limited compatibility concerns. Most other PRs will be rejected.

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This PR is small in size and is dding a minimal support (probably/mostly) not full neither complete for es6 import style.

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[PicoI2]

I tried it on a project using vite and having a lot of protocolbuffers messages and it works great, thank you safranaj !

[wszydlak]

@lukesandberg any chances to make some progress on this? With modern approach with esbuild + vite it's also impossible to use google-protobuf

[stasberkov]

Can anybody make a code review?