Detect minimum and maximum fan speeds

[gaul]

Default to previous values if detection fails. Configuration can
still override these values. Fixes #114.

[sasanj]

I think we need to add an option to mpbfan to output a configuration file, based on these detected values.
This way, make install becomes smarter, and addresses the issue #114 way better.

[gaul]

Ideally mbpfan should work without any configuration file. I plan a subsequent commit which will make intelligent decisions about the temperatures.

[dgraziotin]

Currently on vacation. Will try to review all these PR by the end of the month. I would like more the generation of a config file than to go config-less. Still give power to end user to override.

[gaul]

Agree that the user should be able to override the defaults, but I would like the defaults to be dynamic instead of static as today.

[dgraziotin]

@gaul how about having a flag to create a default config file instead? That would use your smart detection system and would make the user more aware of what is going on.
Anyway, this is candidate for a 2.1.x release.

[gaul]

mbpfan should not need a config file for typical users and only use it for unusual situations. macOS users do not need a config file to get reasonable behavior from their fans!

[gaul]

@dgraziotin I would like to merge this; any objections?

[gaul]

Unfortunately Better Code Hub does not allow me to view this error:

Only the repository's owners and organization members (if the repository is an organization repository) can view its Better Code Hub results.

@dgraziotin Perhaps you can configure open access somehow?

[dgraziotin]

@gaul I will take a look. Isn't BCH not suitable for C, though? I will look whether I can make the results open for anyone

[gaul]

@gaul I will take a look. Isn't BCH not suitable for C, though? I will look whether I can make the results open for anyone

Sorry I don't understand what is BCH?