UltraGrid plugin: updated CUDA with cmake

client/ultragrid/CMakeLists.txt

+cmake_minimum_required(VERSION 3.10)
+
 set(INC
 	.
   ../renderengine/src
@@ -30,7 +32,8 @@ if(WITH_CLIENT_CESNET)
 	add_definitions(-DWITH_CLIENT_CESNET)
 endif()
 
+enable_language(CUDA)
 include_directories(${INC})
-cuda_add_library(ultragrid${CLIENT_SUFFIX} STATIC ${SRC})
+add_library(ultragrid${CLIENT_SUFFIX} STATIC ${SRC})
 
 install (TARGETS ultragrid${CLIENT_SUFFIX} DESTINATION lib)