Remove/replace/rework CFE_BIT related macros

[skliper]

Is your feature request related to a problem? Please describe.
The CFE_BIT, CFE_SET, CFE_CLR, CFE_TST are all only used within cFE for avoiding recursion in SB, all just once except CFE_BIT

Describe the solution you'd like
Remove unnecessary macro, clearer to just use the expression vs an abstraction like everywhere else bits are set, cleared, tested. Coding standards encourage avoiding overuse of macros.

Describe alternatives you've considered
Could replace with inline functions and provide as a general utility (SB scope isn't all that intuitive), and use it more consistently. These aren't thread safe, if they are maintained consider atomic bit ops.

Additional context
Code review

Requester Info
Jacob Hageman - NASA/GSFC