Issue #146; added wadcache.ini file
wadcache.ini: removed schema file, no longer needed
schemas: move SQLite links into project_journals.git/wadtools.md
wadindex/WADIndexer: moved checksum generation location

- The checksums were being generated in two wildly different lengths
  of time; moving them so they're both after lump indexing (heavy disk
  I/O) should hopefully even out the checksum generation times