OWNERS: Add myself as reviewer to /src and /test

Change-Id: Ic6d40c16557c7cbdd47545a043e20540f9e8bd34
Signed-off-by: Christopher Meis <christopher.meis@9elements.com>
diff --git a/OWNERS b/OWNERS
index 9013168..8d1626e 100644
--- a/OWNERS
+++ b/OWNERS
@@ -56,9 +56,11 @@
 - partial_regex: src
   reviewers:
     - alexander.hansen@9elements.com
+    - christopher.meis@9elements.com
 - partial_regex: test
   reviewers:
     - alexander.hansen@9elements.com
+    - christopher.meis@9elements.com
 - partial_regex: schemas
   reviewers:
     - alexander.hansen@9elements.com
@@ -91,3 +93,6 @@
 - name: Jagpal Singh Gill
   email: paligill@gmail.com
   discord: jagpalgill
+- name: Christopher Meis
+  email: christopher.meis@9elements.com
+  discord: chrimarme_12525