add classpath parser to support apollo config

[hyz1994121]

Fixes #24498 .

Changes proposed in this pull request:

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[hyz1994121]

is there anyone can help me review?

[zhaojinchao95]

is there anyone can help me review?

Hi, thank you for your pull request, And i think this function are provided, you can see ApolloDriverURLProvider.class

[TeslaCN]

Is this dependency irreplaceable?

[hyz1994121]

in my opinion is irreplaceable，maybe you guys have more idea. we can discuss

[hyz1994121]

is there anyone can help me review?

Hi, thank you for your pull request, And i think this function are provided, you can see ApolloDriverURLProvider.class

nonono, in ApolloDriverURLProvider.class，we must set the all yaml file into my apollo,
in my suggesstion, we can only use some ${} for my config value, which means i could not change my apollo config, i just change the config yaml in my project, and in my company, we use some placeholder for some account or password, in some jar package, program can replace the real password to the placeholder. so i provide this parser for the real yaml file in project
and the placeholder in apollo.