run all Android work on separate thread, add HotReloadPathHelper, separate loadTexture/setTexture

android/src/main/kotlin/app/polyvox/filament/HotReloadPathHelper.kt

@@ -0,0 +1,35 @@
+import java.io.*
+import java.nio.file.FileSystems
+import java.nio.file.Files
+import java.nio.file.Path
+import kotlin.io.path.absolutePathString
+import kotlin.io.path.listDirectoryEntries
+import android.util.Log
+
+
+class HotReloadPathHelper {
+    companion object {
+        fun getAssetPath(path: String, packageName: String): String? {
+            // iterate over evr
+            val shortName = packageName.split(".").last().split("_").last()
+            val packagePath = "/data/user/0/${packageName}/code_cache/"
+            Log.v("FFI", "Looking for shortName ${shortName} under package path ${packagePath}")
+            val files = File(packagePath).listFiles().filter {
+              it.path.split("/").last().startsWith(shortName)
+            }.map {
+              val f = File(it.path + "/${shortName}/build/${path}")
+              Log.v("FFI", "Looking for ${f.path.toString()}")
+              f
+            }.filter {
+              it.exists()
+            }.sortedBy {
+              Log.v("FFI", it.path.toString())
+              it.lastModified()
+            }
+            Log.v("FFI", files.size.toString())
+            if(files.size > 0)
+                return files.first().path;
+            return null;
+          }
+    }
+}