[F2Dace] Copy over the Fortran frontend from f2dace/dev branch and merge it into main branch.

[pratyai]

[acalotoiu]

Note: This is a significantly updated and improved version of the Fortran frontend. It adds functionality, robustness, and many new tests, while maintaining parity with functionality on main

[acalotoiu]

@pratyai : please remove the conf.ti files, as well as the icon and ecrad files, as they should not be part of the main commit

[pratyai]

@pratyai : please remove the conf.ti files, as well as the icon and ecrad files, as they should not be part of the main commit

Done

[acalotoiu]

LGTM! @tbennun - can we merge this?