Added FUSE support (#55)

This exposes the watches' file system over FUSE. This way, we can access files on the watch without having to go through `itctl` or developing 3rd party tools.

**Features**

- [x] read/write access to the file system
- [x] read access to momentary sensor data
- [x] live access to sensor data (i.e. WatchMotion rather than Motion)
- [x] configuration of mount point

Co-authored-by: Yannick Ulrich <yannick.ulrich@durham.ac.uk>
Reviewed-on: https://gitea.arsenm.dev/Arsen6331/itd/pulls/55
Co-authored-by: yannickulrich <yannick.ulrich@protonmail.com>
Co-committed-by: yannickulrich <yannick.ulrich@protonmail.com>

main.go

@@ -181,6 +181,14 @@ func main() {
 		log.Error("Error intializing puremaps integration").Err(err).Send()
 	}
 
+	// Start fuse socket
+	if k.Bool("fuse.enabled") {
+		err = startFUSE(ctx, dev)
+		if err != nil {
+			log.Error("Error starting fuse socket").Err(err).Send()
+		}
+	}
+
 	// Start control socket
 	err = startSocket(ctx, dev)
 	if err != nil {