Use CorsairLightingProtocol namespace and naming convention

[Legion2]

As described in #101 for the version 1.0.0 a stable API should be provided using the namespace CorsairLightingProtocol.

Moving all definitions into the namespace is a breaking change. In the same turn also some free functions should be renamed to have unambiguous names without the namespace.

All the breaking changes should be documented and a migration path should be given so users can easily upgrade to the stable version.

[stale]

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