- Get rid of the KDB_MODULE_INFO and operate with LDR_DATA_TABLE_ENTRYs directly.

- Get rid of the KDB_MODULE_INFO and operate with LDR_DATA_TABLE_ENTRYs directly.
  This saves us from some copy steps and unneeded search operations.
- Fix loading HAL.DLL symbols.
  This module is not guaranteed to be the second one in PsLoadedModuleList due to the kernel loading bootvid.dll.
- Don't duplicate code in KdbpSymFindModule and KdbpSymFindUserModule. Use a helper function instead and call it twice from KdbpSymFindModule.
- Get rid of KdbpSymFindModuleByAddress, KdbpSymFindModuleByName and KdbpSymFindModuleByIndex. Instead use a single KdbpSymFindModule for all three variants.
- Remove some unused functions and defines.

svn path=/trunk/; revision=43118