scripted-diff: add NetPermissionFlags scopes where not already present

-BEGIN VERIFY SCRIPT-
s() { git grep -l "$1" -- 'src' ':!src/net_permissions.h' | xargs sed -i -E "s/([^:])$1/\1NetPermissionFlags::$1/"; }

s 'PF_NONE'
s 'PF_BLOOMFILTER'
s 'PF_RELAY'
s 'PF_FORCERELAY'
s 'PF_DOWNLOAD'
s 'PF_NOBAN'
s 'PF_MEMPOOL'
s 'PF_ADDR'
s 'PF_ISIMPLICIT'
s 'PF_ALL'
-END VERIFY SCRIPT-

Co-authored-by: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>

src/net.h

@@ -402,7 +402,7 @@ public:
     std::unique_ptr<TransportDeserializer> m_deserializer;
     std::unique_ptr<TransportSerializer> m_serializer;
 
-    NetPermissionFlags m_permissionFlags{PF_NONE};
+    NetPermissionFlags m_permissionFlags{NetPermissionFlags::PF_NONE};
     std::atomic<ServiceFlags> nServices{NODE_NONE};
     SOCKET hSocket GUARDED_BY(cs_hSocket);
     /** Total size of all vSendMsg entries */