Progress: Unit tests and other minor changes.

Progress: Unit tests and other minor changes.

Get more of the unit tests up to date.
I did not finish working on the f_file unit tests.
I specifically stopped on the stream functions, namely the f_stream_write().

Fix the file defaults, such as _di_f_type_file_defaults_ that should be _di_f_type_file_defaults_d_.

The file flags (wrapped by _di_f_file_flag_d_) must be located with the f_type type_file.h file.