Added HttpClient, DataOps and JSON. Upgraded dep handling

CMakeLists.txt

@@ -13,6 +13,8 @@ project(IACore)
 
 enable_language(C)
 
+include(CMake/FindDeps.cmake)
+
 # Default to ON if root, OFF if dependency
 option(IACore_BUILD_TESTS "Build unit tests" ${PROJECT_IS_TOP_LEVEL})
 
@@ -54,10 +56,6 @@ if (CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR CMAKE_CXX_COMPILER_ID MATCHES "GNU"
     )
 endif()
 
-add_definitions(-D_CRT_SECURE_NO_WARNINGS)
-
-add_subdirectory(Vendor/)
-
 add_subdirectory(Src/)
 
 if(IACore_BUILD_TESTS)