Cleanup of formatting

[lazersos]

This issue is to announce that there will be cleanup of the formatting of the code. In particular, the general idea is to use fprettify to clean up the .f90 sources. The general notes on how to accomplish this are as follows:

• Legacy .f and .f77 files should be left alone for now.
• Each code/subdirectory should be handled by a separate branch for example cleanup/DIAGNO for the diagno code
• Only whitespace formatting should be changed (no bugfixes of features added).
• Code must compile with make clean_release
• Any available tests must be conducted before a pull request is made.
• GNU and Intel compilers must be checked
• Pull requests should reference this issue Cleanup of formatting #190

Also if possible we'll convert the !DEC into proper C # pre-processor directives.

I (@lazersos) will first attempt this with DIAGNO then report back to this thread, at which point we can all start using the tool.