hal: Update first batch of C components to use getter/setter

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These are the first batch of components converted to getter/setter that are partly or in whole written C. There is nothing really wild in the conversion.

Several places have had old hal types replaced with the proper rtapi types. The hal types were being abused as normal variable types, making things unnecessarily slow.

There are several places that could have been optimized or streamlined. Some places it was improved, other places it was not. A future sweep across all components should review them anyway and then can be improved.

The debounce.c component has a possible define to export the state variable as a parameter. It was opted to use the preprocessor to select a hal type or a normal type and add access-functions to wrap read/write to the state. Normally, the EXPORT_STATE is undefined and using a normal variable is faster. Otherwise it would have been unnecessarily slower going though the volatility of hal types.