That prevented from building the SDK with other version of libxerces
than 3.1, which may happen while building Flexisip since it uses
the libxerces provided by the system.

Fix bad chat room when creating a call. Previously, on the call of getOrCreateBasicChatRoom, a chat room with the same peer address was returned without takking account of the local address that could come from multi-accounts.

Fix sending authentification by fixing unmatching proxy on linphone_core_lookup_proxy_by_identity. Default proxy could be different from the URI we want that lead to unexpected behaviour on wrong assertion. Update subscription on remote conference list event if it was the same as the cleared proxy config.

Fix xamarin error on reverse callback : 'Attempting to JIT compile method'. From https://docs.microsoft.com/en-us/xamarin/ios/internals/limitations#reverse-callbacks

Split capability negotiation, single call, secure group chat, message, ephemeral message and audio video conference test suites

Update Readme for Windows and Mac

Fix wrong reason on call termination (user reason was overriden by 'Declined'). Create a new reason : Transferred. Propagate user reason to call session. Play ring tone only if tone indications are enabled.

Fix external projects in LinphoneSdkPlatforms (Desktop and mac) to use a list of paths for CMAKE_PREFIX_PATH

Add a way to export OpenSSL libraries when needed (OpenLDAP) and rewrite OpenSSL link rpath to avoid absolute link Mac : Fix TLS and build for OpenLDAP

CI : OpenSSL cannot be found on Debian10 but it is required by OpenLDAP. Remove it from build on Debian10.

Add a way to export OpenSSL libraries when needed (OpenLDAP) and rewrite OpenSSL link rpath to avoid absolute link.
Mac : Fix TLS for OpenLDAP
Fix tester debugging on OpenLDAP

Mac multi-arch: final folder = desktop

Mac: fix folder

Mac : fix OpenH264 build

OpenH264 build for multi-arch Mac.
Fix bad parameter name on lcb_extra_cxxflags

Optimize Lipo : do mix on all 'architectured' files without restrictions on folder types

Opus : Presuming Neon on arm64/apple

Apple build: Force build to Macos platform if Desktop has been requested

Macos: Propagate versions variables on cmake and add feedback on host architecture

Debug CMAKE_APPLE_SILICON_PROCESSOR and set it to arm64 from CI

VPX : fix mac build for arm64

Add Arm64 and x86_64 builds for Mac. Fix supports for vpx, opus and openh264.
Fix Xcode build

Use call State when streaming/Paused/PausedByRemote in tonemanager to avoid to loose state connection when playing tone.
Play error tone only if tone indications are enabled.