add 0/$ for sol/eol motions

src/core/Command.h

@@ -62,6 +62,8 @@ public:
             FORWARD_ON_TO_CHAR,
             BACK_UP_TO_CHAR,
             BACK_ON_TO_CHAR,
+            START_OF_LINE,
+            END_OF_LINE,
 
             /* These motions aren't command-mode sequences but are used
              * internally. */