* Added map/path.h, moved path-related function headers to path.h.
* Removed the macroed _real() path functions.
* Modified some functions to use boolean return values instead of 1/0 or 0/-1.
* Modified path_search_long() to allow a NULL output pointer (in which case a temporary local buffer will be used instead).
* Removed an unused ->path_half member variable from struct walkpath_data.
git-svn-id: https://svn.code.sf.net/p/rathena/svn/trunk@11958 54d463be-8e91-2dee-dedb-b68131a5f0ec
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