Send each transferred data block to native event bus

[edeckers]

Some background in #136

To allow other libraries to efficiently process the transferred data streams, without ping-ponging over the JS bridge, the library should send each block over an in-process event bus.

Proposed solution

• Add an eventBus { enable:boolean; blockSize?: number } setting
• Send each transferred block of data to the in-process event bus

Progress

• Add a eventBus { enable:boolean; blockSize?: number } setting to the TypeScript code base
• Intercept data and send it in chunks to an event bus on Android
• Intercept data and send it in chunks to an event bus on iOS
• Add TypeScript tests
• Add Android tests
• Add iOS tests