[orx-mesh, orx-obj-loader] Separate into commonMain and jvmMain

orx-obj-loader/build.gradle.kts

@@ -1,12 +1,22 @@
 plugins {
-    org.openrndr.extra.convention.`kotlin-jvm`
+    org.openrndr.extra.convention.`kotlin-multiplatform`
 }
 
-dependencies {
-    implementation(libs.openrndr.application)
-    implementation(libs.openrndr.math)
-    implementation(libs.openrndr.ffmpeg)
-    api(project(":orx-mesh"))
-    demoImplementation(project(":orx-camera"))
-    demoImplementation(project(":orx-mesh-generators"))
-}
+kotlin {
+    sourceSets {
+        val commonMain by getting {
+            dependencies {
+                implementation(libs.openrndr.application)
+                implementation(libs.openrndr.math)
+                api(project(":orx-mesh"))
+            }
+        }
+
+        val jvmDemo by getting {
+            dependencies {
+                implementation(project(":orx-camera"))
+                implementation(project(":orx-mesh-generators"))
+            }
+        }
+    }
+}