Update doxygen configuration to be less verbose

Also not warning on ondocumented functions of which we have many

cmake/doxygen.cfg.in

@@ -528,7 +528,7 @@ LAYOUT_FILE            =
 # The QUIET tag can be used to turn on/off the messages that are generated
 # by doxygen. Possible values are YES and NO. If left blank NO is used.
 
-QUIET                  = NO
+QUIET                  = YES
 
 # The WARNINGS tag can be used to turn on/off the warning messages that are
 # generated by doxygen. Possible values are YES and NO. If left blank
@@ -540,7 +540,7 @@ WARNINGS               = YES
 # for undocumented members. If EXTRACT_ALL is set to YES then this flag will
 # automatically be disabled.
 
-WARN_IF_UNDOCUMENTED   = YES
+WARN_IF_UNDOCUMENTED   = NO
 
 # If WARN_IF_DOC_ERROR is set to YES, doxygen will generate warnings for
 # potential errors in the documentation, such as not documenting some
@@ -625,7 +625,8 @@ EXCLUDE_SYMLINKS       = NO
 # against the file with absolute path, so to exclude all test directories
 # for example use the pattern */test/*
 
-EXCLUDE_PATTERNS       =
+EXCLUDE_PATTERNS       = */.svn/* \
+                         */.git/*
 
 # The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names
 # (namespaces, classes, functions, etc.) that should be excluded from the