Add validonly and range tags to Doxygen (opencomputeproject#716)

Author: kcudnik

Doxyfile

@@ -243,10 +243,12 @@ ALIASES                += "flags        =@par Flags:\n                  @xmlonly
 ALIASES                += "objects      =@par Allowed object types\n    @xmlonly @@objects       @endxmlonly"
 ALIASES                += "allownull    =@par Allows NULL object ID\n   @xmlonly @@allownull     @endxmlonly"
 ALIASES                += "condition    =@par Condition:\n              @xmlonly @@condition     @endxmlonly"
+ALIASES                += "validonly    =@par Valid only when:\n        @xmlonly @@validonly     @endxmlonly"
 ALIASES                += "default      =@par Default value:\n          @xmlonly @@default       @endxmlonly"
 ALIASES                += "ignore       =@par Ignored:\n                @xmlonly @@ignore        @endxmlonly"
 ALIASES                += "isvlan       =@par IsVlan:\n                 @xmlonly @@isvlan        @endxmlonly"
 ALIASES                += "count        =@par Count:\n                  @xmlonly @@count         @endxmlonly"
+ALIASES                += "range        =@par Range:\n                  @xmlonly @@range         @endxmlonly"
 
 # This tag can be used to specify a number of word-keyword mappings (TCL only).
 # A mapping has the form "name=value". For example adding "class=itcl::class"