and added option to set these in the API through raop_set_display
(renamed from raop_set_display_size).. Updated uxplay.cpp to include these
new options. Moved version slightly to UxPlay-1.31
tested: confirmed to work using gstreamer videosink "fpsdisplaysink" to
explicitly show reduction of streaming fps when set below 30 fps.
to writen into raop_t raop for later use when connections are made.
new functions : raop_set_udp_ports, raop_set_tcp_ports, raop_set_display_size
The behavior of the library is unchanged if these functions are not used.
the plist library is removed (the Linux distributions version will be used)
(libplist 2.0)
the library llhttp v 6.0.2 is added to replace http_parser
The curve25519 and ed25519 libraries are removed, and replaced with their
OpenSSL 1.1.1 implementations
crypto is updated
