bufmon: add buffer monitoring plugin

This plugin allow to keep track of buffer usage in VPP graph nodes. The
main use is to detect buffer leakages.

Type: feature

Change-Id: Iadcf4ab98207fab6e2fa375060879bc2a25b711e
Signed-off-by: Benoît Ganne <bganne@cisco.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index e0183dc..1417fa0 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -764,6 +764,11 @@
 M:	Florin Coras <fcoras@cisco.com>
 F:	src/plugins/srtp/
 
+Plugin - bufmon
+I:	bufmon
+M:	Benoît Ganne <bganne@cisco.com>
+F:	src/plugins/bufmon/
+
 cJSON
 I:	cjson
 M:	Ole Troan <ot@cisco.com>