FS-11070: [mod_conference] Improve video bridge first two for mux mode -- add support for files playing in this mode #resolve

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

FS-10967: [mod_conference] chan var "conference_enter_sound" not working, only work when profile param active and being overridden #resolve

This reverts commit 7acc94be.

Revert "FS-11070: [mod_conference] Improve video bridge first two for mux mode -- add support for files playing in this mode #resolve"

This reverts commit 04296b57.

FS-11078: [Build-System] Add mod_say_(es_ar, fa, he, hr, hu, ja, pl, th) modules to the Windows build.

FS-11070: [mod_conference] Improve video bridge first two for mux mode -- add support for files playing in this mode #resolve

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.