Add PyChess

[Crilum]

For @Rak1ta's App Request - closes #1898

This installs the latest version from GitHub (1.0.3), as opposed to @Rak1ta's app which just installs the apt version (1.0.0-1.2).

This also has an update script.

@theofficialgman Are update scripts supposed to have a pi_apps_ver/_64/_32 variable, like the docs say?

[cycool29]

@theofficialgman Are update scripts supposed to have a pi_apps_ver/_64/_32 variable, like the docs say?

No. The update_github_script.sh already does it.

[Crilum]

@theofficialgman Are update scripts supposed to have a pi_apps_ver/_64/_32 variable, like the docs say?

No. The update_github_script.sh already does it.

Thanks.

[theofficialgman]

@theofficialgman Are update scripts supposed to have a pi_apps_ver/_64/_32 variable, like the docs say?

You can specify them but there is no need to and you really shouldn't as @cycool29 said, the script itself will automatically populate the variables as necessary.

Everything you have committed is correct.

[Botspot]

Just played my first match with Stockfish! (and lost)