Added position info to top level parser creation in D2
Added element position argument to DCfgMgrBase::createConfigParser(), so derivations have access to print position info unsupported top level element errors. Removed two log messages DCT_ORDER_ERROR and DCT_ORDER_NO_ELEMENT. These conditions are well explained in exceptions thrown and these logs just cluttered the log output. Removed extra text from DCTL_CONFIG_LOAD_FAIL and DCTL_PARSER_FAIL log messages. The log ID is self-explanatory and the underlying exceptions provide ample explanation of the error. Makes the log output much easier to understand. Revised items-not-in-parse-order detection in DCfgMgrBase::parseConfig(). Rather than complicated counting logic, objects are removed from the list as they are parsed. Any left over were not in the parsing-order. Removed try-catch-throw from DCfgMgrBase::buildAndCommit. This method already throws its own exception. Catching, logging, and re-throwing exceptions from underneath it really just server to clutter the log.
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