Add an alternative to std::find for insensitive case searches in bctoolbox.

Restore previous behaviour. Do not return belle_sip_source_t when scheduling task on the main loop. Create timer instead to queue a task on the main loop in order to be able to cancel it should the call end before its execution

Fix an issue where audio stops when trying to send a DTMF while no telephone-event payload types are configured in the session.

IOS Audio route - Fix incorrect event change, do not add UNKNOWN type audio devices to the device list

Added extra options to speed up submodule gathering and to allow fetch of rewritten tags (in case of an error during tagging)

Extended upload dir job to manage podspec urls

Improved verbosity of windows select upload directory log to avoid confusion. Upload dir check is performed on liblinphone git describe, but the version attached to filename is the SDK one. This should be harmless as long as a SDK and liblinphone are aligned regarding snapshot/releases tag

Remove OpenH264 from Windows packages.