framework: Properly handle the case of no components configured

[Treece-Burgess]

Pull Request Description

In the master branch, if you configure PAPI as follows:

./configure --prefix=$PWD/test-install --disable-cpu

No components will be configured and this is indeed correct behavior. However, configure does not output anything for "checking for components to build..." and papi_component_avail shows Native: 0, Preset: 0, Counters: 0, i.e.

configure:

checking for components to build...

papi_component_avail:

Compiled-in components:
Name:   No Components Configured.  

Active components:
Name:   No Components Configured.  
                                Native: 0, Preset: 0, Counters: 0


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This PR updates this behavior as follows:

1. If no components are configured, configure will now output:

checking for components to build... No components configured

2. If no components are configured, papi_component_avail will output:

Compiled-in components:
Name:   No Components Configured. 

Active components:
Name:   No Components Configured. 

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Testing

These changes were verified on Methane at ICL (CPU: Intel Xeon Gold 6140, OS: Rocky Linux 9.6 )

Author Checklist

• Description
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