Add session and key name to EmbType and TelemetryType respectively

embrace-android-sdk/src/main/java/io/embrace/android/embracesdk/arch/schema/EmbType.kt

@@ -1,16 +1,22 @@
 package io.embrace.android.embracesdk.arch.schema
 
+import io.embrace.android.embracesdk.internal.spans.toEmbraceAttributeName
+
 internal sealed class EmbType {
 
  /**
  * Keys that track how fast a time interval is. Only applies to spans.
  */
- internal sealed class Performance : TelemetryType
+ internal object Performance : TelemetryType {
+ override val description: String = "performance"
+ }
 
  /**
  * Keys that track a point in time & is visual in nature. Applies to spans, logs, and span events.
  */
  internal sealed class Ux(subtype: String) : TelemetryType {
+ internal object Session : Ux("session")
+
  internal object View : Ux("view")
 
  override val description = "ux.$subtype"
@@ -35,4 +41,9 @@ internal sealed class EmbType {
  */
 internal interface TelemetryType {
  val description: String
+
+ /**
+ * Return the key name used by this attribute when is used inside of OpenTelemetry objects
+ */
+ fun attributeName(): String = "type".toEmbraceAttributeName()
 }