Support for `actor charge` in the CLI

[netmilk]

With the upcoming rollout of the Apify Pay-Per-Event monetization model, we need to support that functionality in the runtime actor command namespace and the future $ actor command.

Please refer to

• Actor Whitepaper / Charging Money
• Apify Plarform Docs
• Apif API Docs
• Apify Python SDK
• Apify JS SDK ( @B4nan @metalwarrior665 please help, I couldn't find the method in the reference)

I'll follow up with a full spec as discussed with @mhamas .

[B4nan]

SDK support is still in development apify/apify-sdk-js#346