Add files

Kinc/Backends/System/Emscripten/Sources/kinc/backend/thread.c.h

@@ -0,0 +1,15 @@
+#include <kinc/threads/thread.h>
+
+void kinc_thread_init(kinc_thread_t *t, void (*thread)(void *param), void *param) {}
+
+void kinc_thread_wait_and_destroy(kinc_thread_t *thread) {}
+
+bool kinc_thread_try_to_destroy(kinc_thread_t *thread) {
+	return false;
+}
+
+void kinc_threads_init() {}
+
+void kinc_threads_quit() {}
+
+void kinc_thread_sleep(int milliseconds) {}