Read/write based on realm

[calisro (Rob)]

Caddy won't be able to do what I want. @ncw any chance on getting

@calisro

Unless multiple password files are defined by realm.
–htpasswd=READREALM:/my/.passwordread;WRITEREALM:/my/.passwordwrite;
–realms=READREALM:RO,WRITEREALM:RW

something like that implemented to separate read from read write in DAVS especially.