Code cleanup tasks

[manuelF]

• Format Code:
  -- C++ / CUDA clang-format3.8
  -- Fortran: TBD
• Fortran77 to Fortran90
• Standarize timers:
  Create a common, easy to use, interface to have consistent output in log files
• Standarize LIO output format: Use JSON or XML
• Standarize where runtime parameters are taken from (gpu_options is not the best place)
• Centralize LIO and liosolo outputs into a single file, to simplify testing.
• Replace makefiles with generic versions and reduce customization.
• Device graphic testing extensions between output and golden for critical values, to simplify sanity checks.
• Restructure lioamber file names and folders into simpler
• Make fortran utests automatic
• Minimize surface between g2g and lioamber, reduce the number of terms passed.
• Write unit tests for g2g,
• Standarize datatypes en g2g, vector types
• Standarize function naming, camelCase or hacker_case
• Standarize language in comments and code. Remove spanish from code base.
• Remove commented out code from the codebase