Updates

[marip8]

Various updates per commit messages

• Replaced header guards with #pragma once for simplicity and to ensure conflict avoidance
• Updated README to reflect getSection base class requirement
• Updated example
  • Hide getSection from the public API of the example plugins
  • Return strings rather than references
  • Install the example so it can be run
• Removed include of plugin_loader.hpp in plugin_loader.h to reduce build times and allow for correct explicit template instantiation

[codecov]

Codecov Report

Merging #3 (b8ec58f) into main (46ac798) will not change coverage.
The diff coverage is n/a.

❗ Current head b8ec58f differs from pull request most recent head 0b9590c. Consider uploading reports for the commit 0b9590c to get more accurate results

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  Lines          144       144           
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  Hits           144       144           

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[Levi-Armstrong]

I am particularly not a fan of using #pragma once mainly because it is not part of the standard. Each are error prone, but I think it is better to stick with something that is part of the standard versus something that is not.

[Levi-Armstrong]

It is also recommended against using #pragma once in the cpp core guidelines.

[Levi-Armstrong]

If it was part of the standard I would definitely use it over the include guards.