Add VERSION property to CMake library targets

cmake/libprotobuf-lite.cmake

diff --git a/cmake/libprotobuf-lite.cmake b/cmake/libprotobuf-lite.cmake
index f5242d4..423b6c1 100644
--- a/cmake/libprotobuf-lite.cmake
+++ b/cmake/libprotobuf-lite.cmake
@@ -62,5 +62,6 @@
     PRIVATE LIBPROTOBUF_EXPORTS)
 endif()
 set_target_properties(libprotobuf-lite PROPERTIES
+    VERSION ${protobuf_VERSION}
     OUTPUT_NAME ${LIB_PREFIX}protobuf-lite
     DEBUG_POSTFIX "${protobuf_DEBUG_POSTFIX}")

cmake/libprotobuf.cmake

diff --git a/cmake/libprotobuf.cmake b/cmake/libprotobuf.cmake
index 72db915..e07340d 100644
--- a/cmake/libprotobuf.cmake
+++ b/cmake/libprotobuf.cmake
@@ -125,5 +125,6 @@
     PRIVATE LIBPROTOBUF_EXPORTS)
 endif()
 set_target_properties(libprotobuf PROPERTIES
+    VERSION ${protobuf_VERSION}
     OUTPUT_NAME ${LIB_PREFIX}protobuf
     DEBUG_POSTFIX "${protobuf_DEBUG_POSTFIX}")

cmake/libprotoc.cmake

diff --git a/cmake/libprotoc.cmake b/cmake/libprotoc.cmake
index 107c1c5..a85dccd 100644
--- a/cmake/libprotoc.cmake
+++ b/cmake/libprotoc.cmake
@@ -225,5 +225,6 @@
 endif()
 set_target_properties(libprotoc PROPERTIES
     COMPILE_DEFINITIONS LIBPROTOC_EXPORTS
+    VERSION ${protobuf_VERSION}
     OUTPUT_NAME ${LIB_PREFIX}protoc
     DEBUG_POSTFIX "${protobuf_DEBUG_POSTFIX}")