Fix missing array include.

src/V3Error.h

@@ -23,6 +23,7 @@
 // Limited V3 headers here - this is a base class for Vlc etc
 #include "V3String.h"
 
+#include <array>
 #include <bitset>
 #include <cassert>
 #include <deque>

src/V3Os.h

@@ -20,6 +20,8 @@
 #include "config_build.h"
 #include "verilatedos.h"
 
+#include <array>
+
 // Limited V3 headers here - this is a base class for Vlc etc
 #include "V3Error.h"