Core: Add UI option to enable/disable the new zero DOS stub data option.
Unpackers: Add support for new zero DOS stub data option.
API: `DontRealignSections` and `ZeroDosStubData` are now default enabled as this is the general 'correct' way to handle most files. (Some files do require the section alignment to happen and some files may use the DOS stub for self-validation and such. Adjust accordingly when using Steamless.)
API: PE36 Adjusted FindPattern to return a long instead of uint. Default return is now -1.
Unpackers: Updated all usages of FindPattern to reflect new API change.
Core: Add support for new disable section realignment option.
Unpacker: v20.x86 - Add support for new disable section realignment option.
Unpacker: v21.x86 - Add support for new disable section realignment option.
Unpacker: v30.x86 - Add support for new disable section realignment option.
Unpacker: v30.x64 - Add support for new disable section realignment option.
Unpacker: v31.x86 - Add support for new disable section realignment option.
Unpacker: v31.x64 - Add support for new disable section realignment option.
Unpacker: v31.x64 - Adjust size of data searched when determining the variant version. Fixes #56
Misc: Update project copyrights.
Misc: Remove some unused/dead code from the UI.
