… version could access 1 more byte past buffer's end).

…ll block each time, instead of 1 line at a time.

…s, instead of TInStream, which can not. It is also expected to be slightly more efficient.

- Command-Line Interface:
  - Improving Reference Guide about new command-line options.

- ExportTracksFileFlags: new enum to store properties of each type of saved file. Replaces 2 booleans. Getter functions updated.
- EDF output: removed short int field, using local variable instead.

- Removed AnimationEnum, now using the more general ExecFlag enums.

- EDF and BioSemi are nearly identical file formats. Therefor, it would be nice to also be able to save as BioSemi, taking benefit of the increased numerical resolution.

- TEegBiosemiBdfDoc:
  - 2 utility functions: INT32ToINT24 and INT24ToINT32 (was Bdf24To32).
  - GetTrailingSize now also scans BDF files, and not only EDF. Method rewritten to be able to read values from both EDF (INT16) and BDF (INT24) files. Also fixed an error in the final TF conversion, though it didn't have any consequences for equal sampling frequencies...
  - ReadRawTracks: minor rewrite to clarify and simplify conversions.

- TExportTracks:
  - Added BDF to the list of exported file types.
  - EdfCellSize to return the atomic size for EDF and BDF.
  - EDFseekp now works with EDF and BDF.
  - EdfWrite: new handy method that takes a float value, and writes either a 2- or 3-bytes value to file. It also take care of clipping the input float value.
  - End, WriteTriggers, Write methods: now use the new EdfWrite method.
  - WriteHeader: added the minimal changes needed to write a BDF header - we will see in the future if more needs to be done. It also makes use of a bigger digital max constant.

- Added BDF to the list of output tracks files so that dialogs can offer this new format.
- Added BDF to the list of file types when using "Save As" from File Menu.
- Tested.