to keep track of runtimes, used exports depending on runtime
modules can have different hashes and generated code depending on runtime
chunks are only considered as equal for MergeDuplicateChunks and SplitChunks when exports used in contained modules are equal
added `optimization.usedExports: "global"` to opt-out from used exports analysis per runtime
added `splitChunks.usedExports` and `splitChunks.cacheGroups[x].usedExports` to enable/disable used exports comparing for modules
`splitChunks.usedExports` defaults to `true` in production
add flagged exportsType for __esModule flagged
add getExportsType to merge strict with exportsType
move CommonJsStuffPlugin into CommonJsPlugin
split CommonJsPlugin into imports and exports part
enable minimal tree shaking for CommonJs imports and exports
alexander.akait
Tobias Koppers
Pushkar DK