Add missing include

myd7349 · myd7349 · commit c66203f917d9 · 2024-01-15T22:41:30.000+08:00
This will fix build errors in VS2022:
error C3861: 'assert': identifier not found.
diff --git a/include/delaunator.cpp b/include/delaunator.cpp
@@ -4,6 +4,7 @@
 #include <iostream>
 
 #include <algorithm>
+#include <cassert>
 #include <cmath>
 #include <numeric>
 #include <limits>
