[cmake] use CMAKE_MSVC_RUNTIME_LIBRARY

* Increase required CMake version to 3.15 (windows only)
* Use
  https://cmake.org/cmake/help/latest/prop_tgt/MSVC_RUNTIME_LIBRARY.html#prop_tgt:MSVC_RUNTIME_LIBRARY
  to select windows runtime

server/proxy/modules/bitmap-filter/CMakeLists.txt

@@ -32,6 +32,8 @@ endif()
 set(CMAKE_CXX_STANDARD 11)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
+include(MSVCRuntime)
+
 add_library(${PROJECT_NAME} MODULE
 	bitmap-filter.cpp
 )

server/proxy/modules/capture/CMakeLists.txt

@@ -33,6 +33,8 @@ if (supported)
     set(CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE)
 endif()
 
+include(MSVCRuntime)
+
 add_library(${PROJECT_NAME} MODULE
 	cap_main.c
 	cap_config.c

server/proxy/modules/demo/CMakeLists.txt

@@ -32,6 +32,8 @@ endif()
 set(CMAKE_CXX_STANDARD 11)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
+include(MSVCRuntime)
+
 add_library(${PROJECT_NAME} MODULE
 	demo.cpp
 )

server/proxy/modules/dyn-channel-dump/CMakeLists.txt

@@ -31,6 +31,8 @@ endif()
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
+include(MSVCRuntime)
+
 add_library(${PROJECT_NAME} MODULE
 	dyn-channel-dump.cpp
 )