Update client to support Preview 10

[Shaptic]

NEEDS RPC CHANGES MERGED FIRST.

Done:

• yarn upgrade-interactive --latest on dev dependencies
• upgrade stellar-base to preview 10
• add durability ('persistent' | 'temporary') support to ledger keys
• move to single-function invokes
• move to single-result simulations
• move to new auth xdr structure

Remaining:

• merge to remove as unknown hack: Fix TypeScript definition for Operation.invokeHostFunction options js-stellar-base#635
• fix tests
• changelog

The major change is to getContractData(), adding an optional parameter:

  /**
   * @param {Durability} [durability] - The "durability keyspace" that this
   *    ledger key belongs to, which is either 'temporary' or 'persistent' (the
   *    default), see {@link Durability}.
   * 
   * @warning If the data entry in question is a 'temporary' entry, it's
   *    entirely possible that it has expired out of existence. Future versions
   *    of this client may provide abstractions to handle that.
   **/

[paulbellamy]

3 suggestions:

• Let's call this durability to match the API elsewhere, and in the xdr.
• wdyt of making persistent the default? That is what we are pushing people towards.
• Maybe extract the Durability to a type or enum?

Suggested change

	expirationType: 'temporary' | 'persistent' = 'temporary'
	durability: Durability = 'persistent'

[Shaptic]

Oh really? I thought temporary was actually preferred (i.e. if you want to pay for and worry about persistence, you should know its purpose & understand it better).

[tomerweller]

I think that this dialog suggests that not having a default might be the preferred way to go?

[Shaptic]

I guess it begs the question of "how much do we want people to care about storage durability?" is the answer "when it's important", "usually", or "always"?