Replace core:* to base:* where appropriate

core/sys/info/platform_windows.odin

@@ -2,12 +2,12 @@
 package sysinfo
 
 import sys "core:sys/windows"
-import "core:intrinsics"
+import "base:intrinsics"
 import "core:strings"
 import "core:unicode/utf16"
 
 import "core:fmt"
-import "core:runtime"
+import "base:runtime"
 
 @(private)
 version_string_buf: [1024]u8