Fix bug reported by b1rdG
The new way permits to add more formats in the future without breaking
retro-compatibility again.
Add support for RsJson in rsdebug for Android
Move JSON helpers to util/rsjson.* for better usability
Implement JSON ostream manipulator to print compact and pretty JSON
Use lambdas for API wrappers, integrate better and avoid namespace
pollution
Removed experimental JSON API for notify client wrapper, notifications
can be implemented automatically with moderns async API calls
Implement and automatically expose to JSON API
RsGxsChannels::turtleSearchRequest(
const std::string& matchString,
const std::function<void (const RsGxsGroupSummary&)>& multiCallback,
std::time_t maxWait )