PM-24688: Use the realtime elapse time to determine vault lock timeouts (#5684)

core/src/main/kotlin/com/bitwarden/core/data/manager/realtime/RealtimeManager.kt

@@ -0,0 +1,11 @@
+package com.bitwarden.core.data.manager.realtime
+
+/**
+ * An manager interface for accessing the system realtime clock.
+ */
+interface RealtimeManager {
+    /**
+     * Returns milliseconds since the device has booted up, this includes time spent in sleep.
+     */
+    val elapsedRealtimeMs: Long
+}

core/src/main/kotlin/com/bitwarden/core/data/manager/realtime/RealtimeManagerImpl.kt

@@ -0,0 +1,12 @@
+package com.bitwarden.core.data.manager.realtime
+
+import android.os.SystemClock
+import com.bitwarden.annotation.OmitFromCoverage
+
+/**
+ * The default implementation of the [RealtimeManager].
+ */
+@OmitFromCoverage
+class RealtimeManagerImpl : RealtimeManager {
+    override val elapsedRealtimeMs: Long get() = SystemClock.elapsedRealtime()
+}