Resolve Meson issues

This commit includes fixes in the repo:

1. Moving experimental filesystem to filesystem
2. Errors that meson identified

Signed-off-by: Ratan Gupta <ratankgupta31@gmail.com>
Change-Id: I93c77c2a434275c4da3ca4549919eaa55b57f481
diff --git a/snmp_notification.cpp b/snmp_notification.cpp
index db19ecc..2037765 100644
--- a/snmp_notification.cpp
+++ b/snmp_notification.cpp
@@ -60,8 +60,7 @@
 void Notification::sendTrap()
 {
     constexpr auto comm = "public";
-    netsnmp_session session{0};
-
+    netsnmp_session session{};
     snmp_sess_init(&session);
 
     init_snmp("snmpapp");