Add getScopesDelimiter
Add getScopesDelimiter

Some service like Strava, do not fully respect the Oauth's RFC, and use scopes with commas as delimiter.
Overwrite method "getScopesDelimiter" in your service class to change that.

MaDKaTZe/PHPoAuthLib,elliotchance/PHPoAuthLib,JLueke/PHPoAuthLib,RewardGateway/PHPoAuthLib,sebastian301082/PHPoAuthLib,lussn/PHPoAuthLib,Surfoo/PHPoAuthLib,defragmentator/PHPoAuthLib,canfiax/PHPoAuthLib,leansoft/PHPoAuthLib,i-am-ains-ly/PHPoAuthLib