polserver / polserver / 13025394165

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WorldSave performance (#753)

* directly write to stream

* quickfix just disabled orphan console print

* now?

* debug timer for each file

* removed pointer indirection
use defined underlying buffer size
reactivated orphans

* missing files

* optimized away dynamic allocations during formatting by using buffer

* debug print thread id used
stop timer of blocking part

* wake up all threads, if the producer thread is faster only one thread
will wake up...
extended debug logging

* after reading the standard...
notify_* is atomic thus multiple calls to notify_one will always wake up
a different thread.
So notify_one is correct here and notify_all pessimistic

* increased the buffer
ordered savefiles roughly by size

* use compile time strings to optimize formatting
added a few shortcuts
optimized hexint by adding a string_view version with threadlocal buffer

* cleanup

* readded terminate protection

* docs

* StreamWriter needs to be destroyed before printing the stream

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