msi: Store properties in a hash table, not the database.

dlls/msi/msipriv.h

@@ -201,6 +201,8 @@ struct tagMSIVIEW
 struct msi_dialog_tag;
 typedef struct msi_dialog_tag msi_dialog;
 
+#define PROPERTY_HASH_SIZE 67
+
 typedef struct tagMSIPACKAGE
 {
     MSIOBJECTHDR hdr;
@@ -232,6 +234,8 @@ typedef struct tagMSIPACKAGE
 
     UINT WordCount;
 
+    struct list props[PROPERTY_HASH_SIZE];
+
     struct list subscriptions;
 } MSIPACKAGE;