Implement forgetting WiFi APs (#116)

.. and fix the simulator build

Boards/Simulator/Source/hal/SimulatorPower.cpp

@@ -0,0 +1,44 @@
+#include "SimulatorPower.h"
+
+#define TAG "simulator_power"
+
+bool SimulatorPower::supportsMetric(MetricType type) const {
+    switch (type) {
+        case IS_CHARGING:
+        case CURRENT:
+        case BATTERY_VOLTAGE:
+        case CHARGE_LEVEL:
+            return true;
+    }
+
+    return false; // Safety guard for when new enum values are introduced
+}
+
+bool SimulatorPower::getMetric(Power::MetricType type, Power::MetricData& data) {
+    switch (type) {
+        case IS_CHARGING:
+            data.valueAsBool = true;
+            return true;
+        case CURRENT:
+            data.valueAsInt32 = 42;
+            return true;
+        case BATTERY_VOLTAGE:
+            data.valueAsUint32 = 4032;
+            return true;
+        case CHARGE_LEVEL:
+            data.valueAsUint8 = 80;
+            return true;
+    }
+
+    return false; // Safety guard for when new enum values are introduced
+}
+
+static std::shared_ptr<Power> power;
+
+std::shared_ptr<Power> simulatorPower() {
+    if (power == nullptr) {
+        power = std::make_shared<SimulatorPower>();
+    }
+    return power;
+}
+