Add an option to set the number of songs in the buffer

[pihomeserver]

Hello
In the Readme it's explained that the player is loading 5 songs at the start for a buffer.
Is it possible to add a parameter to set this number of pre loaded songs to improve the start of the app ? In my case 2 should be really sufficient

Thank you for this app !

[talwat]

Yeah, I think this is definitely something some people might want to tweak. Right now it's just a constant, so it really shouldn't be too difficult to implement.

[talwat]

Implemented with 34577ef, let me know if it works as intended :)