Update libvpx to v.1.15.0

Author: bear101

Library/TeamTalkLib/build/libvpx/CMakeLists.txt

@@ -42,7 +42,7 @@ if (MSVC)
 
       ExternalProject_Add(libvpx-src
         GIT_REPOSITORY    https://github.com/webmproject/libvpx
-        GIT_TAG           v1.9.0
+        GIT_TAG           v1.15.0
         UPDATE_COMMAND    ""
         PREFIX            ${TOOLCHAIN_BUILD_PREFIX}/libvpx
         CONFIGURE_COMMAND ""
@@ -75,7 +75,7 @@ if (MSVC)
 
       ExternalProject_Add(libvpx-src
         GIT_REPOSITORY    https://github.com/webmproject/libvpx
-        GIT_TAG           v1.9.0
+        GIT_TAG           v1.15.0
         UPDATE_COMMAND    ""
         PREFIX            ${TOOLCHAIN_BUILD_PREFIX}/libvpx
         CONFIGURE_COMMAND ""
@@ -111,7 +111,7 @@ elseif (${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
 
     ExternalProject_Add(libvpx-arm64-src
       GIT_REPOSITORY    https://github.com/webmproject/libvpx
-      GIT_TAG           v1.11.0
+      GIT_TAG           v1.15.0
       GIT_SHALLOW       TRUE
       UPDATE_COMMAND    ""
       PREFIX            ${TOOLCHAIN_BUILD_PREFIX}/libvpx-arm64
@@ -127,7 +127,7 @@ elseif (${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
 
     ExternalProject_Add(libvpx-intel-src
       GIT_REPOSITORY    https://github.com/webmproject/libvpx
-      GIT_TAG           v1.11.0
+      GIT_TAG           v1.15.0
       GIT_SHALLOW       TRUE
       UPDATE_COMMAND    ""
       PREFIX            ${TOOLCHAIN_BUILD_PREFIX}/libvpx-intel
@@ -186,7 +186,7 @@ elseif (${CMAKE_SYSTEM_NAME} MATCHES "iOS")
   if (TOOLCHAIN_BUILD_EXTERNALPROJECTS)
     ExternalProject_Add(libvpx-src
       GIT_REPOSITORY    https://github.com/webmproject/libvpx
-      GIT_TAG           v1.9.0
+      GIT_TAG           v1.15.0
       GIT_SHALLOW       TRUE
       UPDATE_COMMAND    ""
       PREFIX            ${TOOLCHAIN_BUILD_PREFIX}/libvpx
@@ -225,7 +225,7 @@ elseif (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
   if (TOOLCHAIN_BUILD_EXTERNALPROJECTS)
     ExternalProject_Add(libvpx-src
       GIT_REPOSITORY    https://github.com/webmproject/libvpx
-      GIT_TAG           v1.9.0
+      GIT_TAG           v1.15.0
       GIT_SHALLOW       TRUE
       UPDATE_COMMAND    ""
       PREFIX            ${TOOLCHAIN_BUILD_PREFIX}/libvpx
@@ -285,7 +285,7 @@ elseif (${CMAKE_SYSTEM_NAME} MATCHES "Android")
   if (TOOLCHAIN_BUILD_EXTERNALPROJECTS)
     ExternalProject_Add(libvpx-src
       GIT_REPOSITORY    https://github.com/webmproject/libvpx
-      GIT_TAG           v1.9.0
+      GIT_TAG           v1.15.0
       GIT_SHALLOW       TRUE
       UPDATE_COMMAND    ""
       PREFIX            ${TOOLCHAIN_BUILD_PREFIX}/libvpx