Load Swift Libraries manually instead of System.loadLibrary

[TheTripleV]

I'm trying to use swift-java to include swift code in a java image processing application.
PhotonVision/photonvision#2158

I'm using FFM mode.
I've got it building when using ./gradlew run but it fails when packaging into a jar.

The generated java code uses System.loadLibrary but this doesn't work from a jar because

1. /usr/bin/swift is not on the java path
2. SwiftJava and SwiftRuntimeFunctions are still inside the jar

I think a solution would be to extract the libs in the initializer and use System.load.