Add libsodium license, even though the source is not really included in this repo, update cinterop def to point to absolute path (still missingfor linker)

multiplatform-crypto-delegated/build.gradle.kts

@@ -196,6 +196,7 @@ kotlin {
                 if (!name.contains("ios")) {
                     val libsodiumCinterop by cinterops.creating {
                         defFile(project.file("src/nativeInterop/cinterop/libsodium.def"))
+                        compilerOpts.add("-I${project.rootDir}/sodiumWrapper/include/")
                     }
                 }
             }

multiplatform-crypto-delegated/src/nativeInterop/cinterop/libsodium.def

@@ -1,6 +1,6 @@
 headers = sodium.h
 headerFilter = sodium.h sodium/**
 staticLibraries = libsodium.a
-libraryPaths = /home/ionspin/Projects/Future/sodiumWrapper/lib
-compilerOpts = -I/home/ionspin/Projects/Future/sodiumWrapper/include
+libraryPaths = sodiumWrapper/lib
+#compilerOpts = -I./sodiumWrapper/include
 linkerOpts =