Add AppVeyor CI builds

CMakeLists.txt

@@ -0,0 +1,37 @@
+
+cmake_minimum_required(VERSION 3.1)
+project(moonlight-common-c LANGUAGES C)
+
+SET(CMAKE_C_STANDARD 11)
+
+find_package(OpenSSL 1.0.2 REQUIRED)
+
+aux_source_directory(src SRC_LIST)
+aux_source_directory(enet SRC_LIST)
+aux_source_directory(reedsolomon SRC_LIST)
+
+if(MSVC)
+  add_compile_options(/W4 /wd4100 /wd4232)
+  add_definitions(-D_CRT_SECURE_NO_WARNINGS=1 -D_CRT_NONSTDC_NO_DEPRECATE=1)
+  link_libraries(ws2_32.lib qwave.lib winmm.lib)
+else()
+  add_compile_options(-Wall -Wextra -Wno-unused-parameter)
+endif()
+
+string(TOUPPER "x${CMAKE_BUILD_TYPE}" BUILD_TYPE)
+if("${BUILD_TYPE}" STREQUAL "XDEBUG")
+	add_definitions(-DLC_DEBUG)
+else()
+	add_definitions(-DNDEBUG)
+endif()
+
+add_definitions(-DHAS_SOCKLEN_T)
+
+include_directories(
+  ${CMAKE_CURRENT_SOURCE_DIR}/enet/include
+  ${CMAKE_CURRENT_SOURCE_DIR}/reedsolomon
+  ${OPENSSL_INCLUDE_DIR})
+
+link_libraries(${OPENSSL_CRYPTO_LIBRARY})
+
+add_library(moonlight-common-c SHARED ${SRC_LIST})