Having more subroutines makes it more obvious how to break the calls down for the file_access_actor

Added threshold and heartbeat interval as parameters that are passed into summa through json

Client can be sent a heartbeat and then send  a message back to the server

 - This allows parent actors to have info for recovery and for the information to not have to be read from a file in the case we are in a distributed situation

 - also added better error message for read_attribute.f90

Implemented a function that prints the functions to stdout for verification

Moved the definition of the settings functions to their own file

adjusted the makefile to include the new settings_functions