LineEndingMode - Support TypeConverter on NETSTANDARD1_3

[snakefoot]

#3469 added support for TypeConverter on NETSTANDARD1_3. Just forgot to enable this one.

[snakefoot]

Also tempted to remove IConvertible from the NLog LogLevel-type as it works better with Json.Net :)

[sonarcloud]

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[304NotModified]

Also tempted to remove IConvertible from the NLog LogLevel-type as it works better with Json.Net :)

Isn't the IConvertible helping the db target?
I'm trying to determine what the result will be for removing
IConvertible.

Also any idea about system.text.json

[snakefoot]

Isn't the IConvertible helping the db target?

The db-target also supports TypeConverter so can still convert LogLevel into string / ordinal based on destination-type.

[snakefoot]

Also any idea about system.text.json

system.text.json does not support TypeConverter or IConvertible out of the box, but just serialize all LogLevel-properties and fails to deserialize (because no public LogLevel-constructor). Also the problem with IConvertible is that you can only convert in one direction. But you can provide your own System.Json.Net JsonSerializerOptions that includes a converter enabling TypeConverter-support (so it can serialize and deserialize).