Replace "core" with ComputeGraph based implementation

Author: michalharakal

core/build.gradle.kts

@@ -32,6 +32,7 @@ kotlin {
     sourceSets {
         val commonMain by getting {
             dependencies {
+                implementation(project(":skainet-graph"))
             }
         }
         val commonTest by getting {

core/src/commonMain/kotlin/sk/ai/net/Tensor.kt

@@ -1,6 +1,7 @@
 package sk.ai.net.core
 
-import sk.ai.net.Tensor
+import sk.ai.net.graph.tensor.Tensor
+
 
 data class Slice(val tensor: Tensor, val dimensionIndex: Int, val startIndex: Long, val endIndex: Long) {
     fun toRange() = startIndex..endIndex