refactor: replace MyNodeInfo with MyNodeEntity (#1277)

app/src/main/java/com/geeksville/mesh/database/entity/MyNodeEntity.kt

@@ -0,0 +1,39 @@
+package com.geeksville.mesh.database.entity
+
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+import com.geeksville.mesh.MyNodeInfo
+
+@Entity(tableName = "my_node")
+data class MyNodeEntity(
+    @PrimaryKey(autoGenerate = false)
+    val myNodeNum: Int,
+    val model: String?,
+    val firmwareVersion: String?,
+    val couldUpdate: Boolean, // this application contains a software load we _could_ install if you want
+    val shouldUpdate: Boolean, // this device has old firmware
+    val currentPacketId: Long,
+    val messageTimeoutMsec: Int,
+    val minAppVersion: Int,
+    val maxChannels: Int,
+    val hasWifi: Boolean,
+) {
+    /** A human readable description of the software/hardware version */
+    val firmwareString: String get() = "$model $firmwareVersion"
+
+    fun toMyNodeInfo() = MyNodeInfo(
+        myNodeNum = myNodeNum,
+        hasGPS = false,
+        model = model,
+        firmwareVersion = firmwareVersion,
+        couldUpdate = couldUpdate,
+        shouldUpdate = shouldUpdate,
+        currentPacketId = currentPacketId,
+        messageTimeoutMsec = messageTimeoutMsec,
+        minAppVersion = minAppVersion,
+        maxChannels = maxChannels,
+        hasWifi = hasWifi,
+        channelUtilization = 0f,
+        airUtilTx = 0f,
+    )
+}