Improve library detection algorithm in LibGpiodDriverFactory

[pgrawehr]

The current detection algorithm in LibGpidDriver factory is somewhat risky, in that it assumes certain default paths for libraries. A more standard approach would be to just try to use PInvoke and catch the error. Note that this is also a bit tricky since the V1 driver internally also tries various .so files.

Other related work:

• [ ] Check alternatives to exposing LibGpiodDriverVersion enum - Exposing this enum, which should rarely be used by the client (as we want "autodetect" to be the default that should work for almost all users) is not really nice. This includes the enum itself as well as the public methods that use it as arguments. (Previously https://github.com/dotnet/iot/issues/2272)

[krwq]

[Triage] We want to repeat logic from System.DirectoryServices.Protocols in dotnet/runtime: https://github.com/dotnet/runtime/blob/ff3c5314badbb0952bc86325baf12f2dd6255f6f/src/libraries/Common/src/Interop/Linux/OpenLdap/Interop.Ldap.cs#L70-L99

[krwq]

we should also look at https://github.com/dotnet/iot/issues/2272 as part of this issue as that code might not be needed anymore