Add lombok.builder.className configuration property

[tagae]

Allows to configure the default builder class name that @Builder will use when the builderClassName option is not passed explicitly.

[juriad]

@tagae In my PR #2136, I introduced IdentifierName (https://github.com/rzwitserloot/lombok/blob/2a98c4d1fd80ff0b3181da4fe8d5f3f32f168644/src/core/lombok/core/configuration/IdentifierName.java). You might want to update yours to use it.

[rzwitserloot]

Good idea but I changed the implementation considerably; yours left a bunch of now useless code, and, crucially, made it impossible to use the type name in the buildername. I noticed your update to the gradle conf file; I also pushed that through.

The changes for supporting the config property are commit c103955

[tagae]

Nice! Thanks a lot for taking in the idea. No problem that my code didn't get merged: I just cared about having the feature, which is the case now :-)