Trylle

logr: define an optional logr.Marshaler interface for types which want to control how they get logged

funcr: support fmt.Stringer and error interfaces on values which implement them

funcr: support logging complex{64,128}

funcr: fix handling of typed nil when logging a struct via reflection

funcr: add (optional) JSON output formatting mode

funcr: better handling of Go's json struct tags (all except "string")

funcr: handle embedded types more like Go's json package

funcr: misc performance optimizations

funcr: add support for modifying or remapping key/value pairs via hook functions

funcr: optionally log the caller function name

funcr: fix escaping of strings which contain special characters like line breaks or quotation marks

funcr: support encoding.TextMarshaler for map keys

funcr: improved testing

link to zerologr at its new location in the go-logr organization

various documentation and go doc enhancements