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Default source address shall be used not only for RTP and RTCP packets, but for all outgoing data packets managed by the session (for example ZRTP or DTLS packets).

(cherry picked from commit ec27e27f)
(cherry picked from commit 8f927f2d)

(cherry picked from commit ec27e27f)

RTP bundle fix - incoming packets distibution to secondary session was involuntarily rate limited because we break out from the recv while loop as soon as a packet to a secondary session was received.
A bit of re-design fixes the issue.
Remove msgb_allocator for recv buffers, it is inefficient. Replace by a simple cache mechanism.

* Require CMake 3.13 or later
* Adding DISABLE_BC_PACKAGE_SEARCH hidden variable
* Export ortp target on configure stage only when LINPHONE_BUILDER_GROUP feature is on.
* Add the source include directory in the BUILD_INTERFACE of the 'ortp' target.

(cherry picked from commit f2c4d71c)

- Windows : Buffer need to be in user allocation space or sending will result of WSAEFAULT. This need to be rechecked if it can be done on error only and not by default.
- Windows : Return an error on sending instead of bytes written. That Fix infinite loop on mbedtls
- Windows : remove WSAECONNRESET spam

- Add cast