sr: Add support for SRv6 Path Tracing Infrastructure

This patch adds support for the infrastructure
required to support SRv6 Path Tracing defined in
https://datatracker.ietf.org/doc/draft-filsfils-spring-path-tracing/

Type: feature

Change-Id: If3b09d6216490a60dd5a816577477b6399abc124
Signed-off-by: Ahmed Abdelsalam <ahabdels@cisco.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index e24d077..444871c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -180,6 +180,7 @@
 VNET Segment Routing (IPv6 and MPLS)
 I:	sr
 M:	Pablo Camarillo <pcamaril@cisco.com>
+M:	Ahmed Abdelsalam <ahabdels@cisco.com>
 F:	src/vnet/srv6/
 F:	src/vnet/srmpls/
 F:	src/examples/srv6-sample-localsid/