Add customers folder at the Doxygen exclude patterns

Reviewers: teon.banek

Reviewed By: teon.banek

Subscribers: pullbot, buda

Differential Revision: https://phabricator.memgraph.io/D1094

Doxyfile

@@ -839,6 +839,7 @@ EXCLUDE_PATTERNS      += */Testing/*
 EXCLUDE_PATTERNS      += */tests/*
 EXCLUDE_PATTERNS      += */dist/*
 EXCLUDE_PATTERNS      += */tools/*
+EXCLUDE_PATTERNS      += */customers/*
 
 # The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names
 # (namespaces, classes, functions, etc.) that should be excluded from the