FS-11068: [mod_conference] Avatar members not supported on personal canvas leading to miscount #resolve

FS-11066: [Build-System] Make WIX project be able to produce snapshots with proper msi naming on windows.

FS-11065: [Build-System, mod_v8] Update libv8 to 6.1.298 on windows, speedup windows build by moving libv8 to pre-compiled binaries.

FS-10989: [core] Fix CUSTOM_HASH hash table race in switch_event logic causing crashes during bind to events.

FS-11020: [Build-System] On Windows: Add missing modules to the msi installer, fix mod_gsmopen build, remove mod_skyopen, disable libav and libx264, cleanup.

Add the RTT field to the RECV_RTCP_MESSAGE event emission which allows external listeners to compute MOS RTCP from the event.

This reverts commit c093b2d3.

RTCP/Receiver Report/lost field is a _signed_ 24bit integer and it could be negative (in case of UDP duplication)
+ any negatives now threated as huge uint32_t
+ set this field properly on __BIG_ENDIAN
+ correctly read this value in received RTCP on all arches

For outgoing calls send AES crypto in offer using corrected names
for keys of length 192 and 256, i.e. names containing _192_CM_
and _256_CM_ instead of _CM_192_ and CM_256_. For incoming calls
accept both naming conventions, decaying to same entry in SUITES.

Conflicts:
	libs/sofia-sip/.update

FS-10908: [mod_amqp] AMQP routing key (format_fields) formation broke and invalid reads reported by valgrind #resolve