feat: support ExprVisitable for plan nodes

[chenzl25]

Is your feature request related to a problem? Please describe.

I already have implemented ExprRewritable for each plan node, while it lacks a corresponding ExprVisitable to visit plan nodes instead of rewriting them. #13459 has found that ExprRewritable is related costly. If we can visit the plan node to check whether we actually need to rewrite exprs we can save CPU cost.

pub trait ExprVisitable {
    fn visit_exprs(&self, _r: &mut dyn ExprVisitor<Result = ()>) {
        unimplemented!()
    }
}

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Additional context

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