Getting SMS and MMS

[Te-k]

I think it may be more reliable and easier to get SMS and MMS using standard permissions, like [sms-ie](https://github.com/tmo1/sms-ie/tree/master/app/src/main/java/com/github/tmo1/sms_ie)

If you want to keep using backup, it is better to use the -nocompress option because it allows to analyse the file directly in python (decompression + encryption is not supported well to read backups in python).

Some phones are also forcing to use a password and it would mean waiting for the user to enter a password and maybe inform them to share it with the file