update: Updated goal positions

* Update goal positions to make sure they actually make sense.

Signed-off-by: mr.Shu <mr@shu.io>
update: Refactored props and other changes

* Refactored props, using named arguments instead of dicts.
* Added debug option to Env.

Signed-off-by: mr.Shu <mr@shu.io>
Merge branch 'master' of github.com:xlcteam/py-soccersim