Download Intercept library to vendor folder on build if needed

Author: Dahlgren

.gitignore

@@ -52,3 +52,6 @@ CTestTestfile.cmake
 
 # JetBrains
 .idea/
+
+# Intercept library
+vendor/intercept/

.gitmodules

@@ -9,6 +9,9 @@ project (template-plugin)
 #Enabling this results in better performance when handling strings to SQF commands.
 option(USE_ENGINE_TYPES "USE_ENGINE_TYPES" OFF)
 
+#Which version of Intercept to build against, branch/commit/tag
+set(INTERCEPT_VERSION "f283e2fd3ce1024e496c6c17eb27f81693f05ca8")
+
 #----Don't change anything below this line
 
 option(USE_64BIT_BUILD "USE_64BIT_BUILD" OFF)
@@ -38,4 +41,13 @@ set_property(GLOBAL PROPERTY USE_FOLDERS ON)
 
 set(CMAKE_CONFIGURATION_TYPES "Debug;Release" CACHE STRING "" FORCE)
 
-add_subdirectory(src)
+add_subdirectory(src)
+
+include(ExternalProject)
+
+# Download Intercept library to vendor folder
+ExternalProject_Add(
+        intercept
+        PREFIX ${CMAKE_CURRENT_LIST_DIR}/vendor/intercept
+        URL https://github.com/intercept/intercept/archive/${INTERCEPT_VERSION}.tar.gz
+)