SimpleWeather service : new weather implementation

This new implementation of the weather feature provides a new BLE API and a new weather service.
The API uses a single characteristic that allows companion apps to write the weather conditions (current and forecast for the next 5 days).
The SimpleWeather service exposes those data as std::optional fields.

This new implementation replaces the previous WeahterService.

The API is documented in docs/SimpleWeatherService.md.

doc/SimpleWeatherService.md

@@ -0,0 +1,68 @@
+# Simple Weather Service
+
+## Introduction
+
+The Simple Weather Service provide a simple and straightforward API to specify the current weather and the forecast for the next 5 days. It effectively replaces the original Weather Service (from InfiniTime 1.8) since InfiniTime 1.14 
+
+## Service
+
+The service UUID is `00050000-78fc-48fe-8e23-433b3a1942d0`.
+
+## Characteristics
+
+## Weather data (UUID 00050001-78fc-48fe-8e23-433b3a1942d0)
+
+The host uses this characteristic to update the current weather information and the forecast for the next 5 days.
+
+This characteristics accepts a byte array with the following 2-Bytes header:
+
+ - [0] Message Type : 
+   - `0` : Current weather
+   - `1` : Forecast
+ - [1] Message Version : Version `0` is currently supported. Other versions might be added in future releases
+
+### Current Weather 
+
+The byte array must contain the following data:
+
+ - [0] : Message type = `0`
+ - [1] : Message version = `0`
+ - [2][3][4][5][6][7][8][9] : Timestamp (64 bits UNIX timestamp, number of nanoseconds elapsed since 1 JAN 1970)
+ - [10] : Current temperature (°C)
+ - [11] : Minimum temperature (°C)
+ - [12] : Maximum temperature (°C)
+ - [13]..[44] : location (string, unused characters should be set to `0`)
+ - [45] : icon ID 
+   - 0 = Sun, clear sky
+   - 1 = Few clouds
+   - 2 = Clouds
+   - 3 = Heavy clouds
+   - 4 = Clouds & rain
+   - 5 = Rain
+   - 6 = Thunderstorm
+   - 7 = snow
+   - 8 = mist, smog
+
+### Forecast
+
+The byte array must contain the following data:
+
+  - [0] : Message type = `0`
+  - [0] : Message version = `0`
+  - [2][3][4][5][6][7][8][9] : Timestamp (64 bits UNIX timestamp, number of nanoseconds elapsed since 1 JAN 1970)
+  - [10] Number of days (Max 5, fields for unused days should be set to `0`)
+  - [11] Day 0 Minimum temperature
+  - [12] Day 0 Maximum temperature
+  - [13] Day 0 Icon ID
+  - [14] Day 1 Minimum temperature
+  - [15] Day 1 Maximum temperature
+  - [16] Day 1 Icon ID
+  - [17] Day 2 Minimum temperature
+  - [18] Day 2 Maximum temperature
+  - [19] Day 2 Icon ID
+  - [20] Day 3 Minimum temperature
+  - [21] Day 3 Maximum temperature
+  - [22] Day 3 Icon ID
+  - [23] Day 4 Minimum temperature
+  - [24] Day 4 Maximum temperature
+  - [25] Day 4 Incon ID

doc/ble.md

@@ -92,7 +92,10 @@ The following custom services are implemented in InfiniTime:
 
 - Since InfiniTime 1.8:
 
-  - [Weather Service](/src/components/ble/weather/WeatherService.h): `00040000-78fc-48fe-8e23-433b3a1942d0`
+  - ~~Weather Service: `00040000-78fc-48fe-8e23-433b3a1942d0`~~ (replaced by Simple Weather Service in InfiniTime 1.14)
+
+- Since InfiniTime 1.14
+  - [Simple Weather Server](SimpleWeahterService.md) : `00050000-78fc-48fe-8e23-433b3a1942d0`
 
 ---