start cleaning up models

app/src/main/java/com/geeksville/mesh/model/NodeDB.kt

@@ -0,0 +1,48 @@
+package com.geeksville.mesh.model
+
+import androidx.compose.mutableStateOf
+import com.geeksville.mesh.MeshUser
+import com.geeksville.mesh.NodeInfo
+import com.geeksville.mesh.Position
+
+object NodeDB {
+    private val testPositions = arrayOf(
+        Position(32.776665, -96.796989, 35), // dallas
+        Position(32.960758, -96.733521, 35), // richardson
+        Position(
+            32.912901,
+            -96.781776,
+            35
+        ) // north dallas
+    )
+
+    val testNodeNoPosition = NodeInfo(
+        8,
+        MeshUser(
+            "+16508765308".format(8),
+            "Kevin MesterNoLoc",
+            "KLO"
+        ),
+        null,
+        12345
+    )
+
+    val testNodes = testPositions.mapIndexed { index, it ->
+        NodeInfo(
+            9 + index,
+            MeshUser(
+                "+165087653%02d".format(9 + index),
+                "Kevin Mester$index",
+                "KM$index"
+            ),
+            it,
+            12345
+        )
+    }
+
+    /// The unique ID of our node
+    val myId = mutableStateOf("+16508765309")
+
+    /// A map from nodeid to to nodeinfo
+    val nodes = mutableStateOf(testNodes.map { it.user!!.id to it }.toMap())
+}