Stuff for SDK v10

[domwebber]

This issue tracks progress against things that will be included in an upcoming v9 release of this SDK. Any features that constitute breaking changes will also be noted here whilst progress continues towards the milestone.

• Update type names to prefix with Whatsapp as relevant. This should make types more clear when operating with WhatsApp Business Accounts and Meta Business Accounts in tandem. This may be included in a minor update with some exported aliases.
• Use positional parameters for required IDs: sdk.etc({ someID, etc }) -> sdk.etc(someID, { etc }). Especially when the ID is the only required parameter and no other parameters are used, it can be cumbersome to create an entire options object - even more so when the ID's variable doesn't exactly match the expected option field name. sdk.etc(someID) is much clearer than sdk.etc({ someOtherID: someID }).
• Only use arrays for fields to be included, not Record<string, boolean>.
• Fix the mismatch of API method names, e.g. getPhoneNumber() and get(). They should probably all use a short name as the resource context is implied from the SDK call (sdk.someResource.method()).