[photran] Free format .f files

[Joe Krahn <krahn@xxxxxxxxxxxxx>]

IMHO, we should aim towards converting all code to free-format, and go
back to using just the plain ".f" suffix for Fortran source files. the
main reason that the ".f90" suffix was created is to indicate free
format. I know that some people are using ".f95", ".f03" and ".f08", but
changing the suffix for each language revision is not the normal
convention for programming languages.

I can select free-format in the properties for compiling the file, but
the source view continues to see it as fixed format. Is there a way to
fix this?

For indication a standards revision, I would rather see it supported in
the language, for example:
 use, intrinsic :: ISO_FORTRAN_2008

Similarly, I think it is best not to put 'implicit none' everywhere. I
know it is against the current convention, but I think it is better to
always use a compiler option that disables default implicit variables.

Thanks,
Joe Krahn