Support for MapStruct SPI

My DTOs are auto generated. each field is generated with an setter(setXXX) and chained accessor(withXXX). I wrote a customized AccessorNamingStrategy SPI to exclude those methods start with with and added the SPI to my project's preprocessor.

My SPI has successfully enlimited warnings of withXXX accessors. but in my IDEA, it still promotes the hits for adding withXXX mappings:

首先，使用排除 withXXX 存取子方法的自訂 AccessorNamingStrategy SPI，在 IntelliJ IDEA 中重現問題。比較 SPI 的行為與 plugin 顯示的對應建議。當被排除的 withXXX 方法不再作為建議的對應出現時，工作就完成了。