CodeMod: Replace uses of wangle::NamedThreadFactory
CodeMod: Replace uses of wangle::NamedThreadFactory

Summary: CodeMod: Replace uses of `wangle::NamedThreadFactory` with `folly::NamedThreadFactory`, to which the former is merely an alias.

Reviewed By: Orvid

Differential Revision: D6062557

fbshipit-source-id: a5bc030eee24d40d14efc7095aec4fddf7efcb0b

facebook/mcrouter,facebook/mcrouter,facebook/mcrouter,facebook/mcrouter