Dropped ServerSoundParams -> moved to ServerPlayingSound. This gets rid of the duplicated
'fade' and 'pitch' values on server-side where only one was used anyway.
SimpleSoundSpec is the basic sound without positional information, hence 'loop' is included.
Recursively added PROTOCOL_VERSION to most functions to reduce the versioning mess in the
future. Per-type version numbers are kept for now as a safety rope in a special case.
This commit clarifies the maximal length of the serialized strings.
It will avoid accidental use of serializeString() when a larger string can be expected.
Removes unused Wide String serialization functions
* Cleanup sound manager client
* Use some const refs
* Use auto on iterators
* Drop unused parameters
* Move sound_openal.* to client folder
* Move sound.cpp + OnDemandSoundFetcher to client/ folder + reorganize includes properly
* Modernize source code: last par
* Use empty when needed
* Use emplace_back instead of push_back when needed
* For range-based loops
* Initializers fixes
* constructors, destructors default
* c++ C stl includes
* Make CI happy with code style on master
* guiFileSelectMenu: remove useless includes
* some performance fixes pointed by cppcheck
* remove some useless casts
* TextDest: remove unused setFormSpec function
