Propagate configurations across PowerAuth instances

[hvge]

If we create multiple instances of PowerAuth object with the same instance identifier then all can provide functionality on top of the same underlying instance of native SDK. This is due to fact, that PowerAuth is just a thin envelope containing instanceId internally to point to the right native object.

Unfortunately, this is not valid for configuration properties available in PowerAuth class. The configuration properties are updated in configure() method so it will be available only in one instance. For example:

const sdk1 = new PowerAuth('default')
const sdk2 = new PowerAuth('default')

console.log(`sdk1 is configured = ${await sdk1.isConfigured()}`)   // false
console.log(`sdk2 is configured = ${await sdk2.isConfigured()}`)   // false

sdk1.configure(configuration)

console.log(`sdk1 is configured = ${await sdk1.isConfigured()}`)   // true
console.log(`sdk2 is configured = ${await sdk2.isConfigured()}`)   // true
console.log(`sdk1 is configured = ${sdk1.configuration}`)          // something
console.log(`sdk2 is configured = ${sdk2.configuration}`)          // null

This is normally not a big deal, but can be confusing for developers that create multiple PowerAuth instances by accident, or for any purpose. So, this is still a nice to have enhancement.