Add CMake support

Clean up file structure.
Update build scripts.

CMakeLists.txt

@@ -0,0 +1,58 @@
+project(subconverter LANGUAGES CXX)
+cmake_minimum_required(VERSION 3.4)
+SET(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/")
+IF(NOT CMAKE_BUILD_TYPE)
+	SET(CMAKE_BUILD_TYPE Release)
+ENDIF()
+SET(CMAKE_CXX_STANDARD 17)
+ADD_DEFINITIONS(-Wall -Wextra -Wno-unused-parameter -Wno-unused-result)
+
+ADD_EXECUTABLE(subconverter 
+	src/logger.cpp
+	src/main.cpp
+	src/misc.cpp
+	src/multithread.cpp
+	src/nodemanip.cpp
+	src/rapidjson_extra.cpp
+	src/speedtestutil.cpp
+	src/subexport.cpp
+	src/webget.cpp
+	src/webserver_libevent.cpp)
+INCLUDE_DIRECTORIES(src)
+
+SET(THREADS_PREFER_PTHREAD_FLAG ON)
+FIND_PACKAGE(Threads REQUIRED)
+TARGET_LINK_LIBRARIES(subconverter ${CMAKE_THREAD_LIBS_INIT})
+
+FIND_PACKAGE(LibEvent REQUIRED)
+FIND_LIBRARY(LIBEVENT_STATIC_LIBS libevent.a)
+INCLUDE_DIRECTORIES(${LIBEVENT_INCLUDE_DIR})
+TARGET_LINK_LIBRARIES(subconverter ${LIBEVENT_STATIC_LIBS})
+
+FIND_PACKAGE(CURL 7.54.0 REQUIRED)
+INCLUDE_DIRECTORIES(${CURL_INCLUDE_DIRS})
+TARGET_LINK_LIBRARIES(subconverter ${CURL_LIBRARIES})
+ADD_DEFINITIONS(-DCURL_STATICLIB)
+
+FIND_PACKAGE(OpenSSL 1.1.0 REQUIRED)
+INCLUDE_DIRECTORIES(${OPENSSL_INCLUDE_DIR})
+TARGET_LINK_LIBRARIES(subconverter ${OPENSSL_LIBRARIES})
+
+FIND_PACKAGE(Rapidjson REQUIRED)
+INCLUDE_DIRECTORIES(${RAPIDJSON_INCLUDE_DIRS})
+
+FIND_PACKAGE(yaml-cpp REQUIRED)
+INCLUDE_DIRECTORIES(${YAML_CPP_INCLUDE_DIRS})
+TARGET_LINK_LIBRARIES(subconverter yaml-cpp.a)
+
+FIND_PACKAGE(PCRE REQUIRED)
+INCLUDE_DIRECTORIES(${PCRE_INCLUDE_DIRS})
+TARGET_LINK_LIBRARIES(subconverter pcrecpp.a ${PCRE_LIBRARIES})
+ADD_DEFINITIONS(-DPCRE_STATIC)
+
+IF(WIN32)
+	TARGET_LINK_LIBRARIES(subconverter wsock32 ws2_32)
+ELSE()
+	INCLUDE(GNUInstallDirs)
+	INSTALL(TARGETS subconverter DESTINATION ${CMAKE_INSTALL_BINDIR})
+ENDIF()