Lzzzt

Feature: Show size in byte

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Add a cli option that show file size in bytes rather than KB or MB, etc. solve the #1236.

refact this function without using BoxedFuture. Just use a Vec as Stack to simulate the recursive process

refactor(core): move move logic from fn metadata(&self) -> Arc<AccessorInfo> to impl<A: Access> Layer<A> for CompleteLayer

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# Which issue does this PR close? Closes #4888 # What changes are included in this PR? mentioned in #4888 # Are there any user-facing changes? No

idea: move logic from `fn metadata(&self) -> Arc<AccessorInfo>` to `impl<A: Access> Layer<A> for CompleteLayer`

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### Feature Description Since the `CompleteAccessor` stores the metadata, and `Access::info` return the `Arc`, we can move logic from `fn metadata(&self) -> Arc` to `impl Layer for CompleteLayer` to avoid...