Utils/Logger: Add more formatting options to SyslogUDPTarget

Utils/Logger: Add more consistent and flexible configuration options to SyslogUDPTarget and IOStreamTarget

Examples/Sniffer: Dump all packet registries before starting the packet capture

Socket/Protocols/Inet: Remove not implemented  async resolv constructors (in favor of a later non-member implementation)
Socket/Protocols/Inet: More detailed exceptions thrown by INet4Address / INet6Address

PPI: More documentation
PPI: Implement IdleEvent and ActiveFeeder
PPI: add Module::running() member
Scheduler: Remove MinTimeout (not needed with ClockService working)

Socket/Protocols/INet: Slightly optimized generic INet6Address algorithms
Utils: Add ios_all_saver to hexdump()
senfscons: Add automatic image-copy to Doxygen builder (fixes weird doxygen copy problem)
Socket/Protocols/Inet: Add ConnectedUDPSocketHandle

Unified emacs Local Variables

Renaned directory satscons to senfscons

Add missing operators to integer Parsers
Fix satcom::pkf::nil to be a valid iterator

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