Refactor Models for InfluxDB (#1)

Update to InfluxDB 2.0 and update all interfaces to work with it.

MAC has been deprecated, since current `influxdb2` doesn't support non built-in types for read/write into the DB.

Co-authored-by: Felipe Diniello <felipediniello@pm.me>
Reviewed-on: #1

kairo-common/src/models/known_position.rs

@@ -0,0 +1,31 @@
+use serde::{Deserialize, Serialize};
+
+use influxdb2_derive::{FromDataPoint, WriteDataPoint};
+
+use crate::Point;
+
+#[derive(
+    Debug, Default, PartialEq, Clone, Serialize, Deserialize, FromDataPoint, WriteDataPoint,
+)]
+#[measurement = "known_positions"]
+pub struct KnownPosition {
+    #[influxdb(tag)]
+    pub id: String,
+    pub x: f64,
+    pub y: f64,
+    pub z: f64,
+    #[influxdb(timestamp)]
+    pub time: i64,
+}
+
+impl KnownPosition {
+    pub fn new(device_id: &str, pos: Point) -> KnownPosition {
+        KnownPosition {
+            id: device_id.into(),
+            time: chrono::Utc::now().timestamp_nanos(),
+            x: pos.x,
+            y: pos.y,
+            z: 0.0,
+        }
+    }
+}