Add iOS TextTool view implementation

[maximbircu]

Abstract

The TextTool component was already implemented, It enables the ability to store and manipulate text/integer and floating-point numbers configurations. An android view implementation was already added in #17 now we need to implement the same view for iOS.

Requirements

Add TextTool view implementation for iOS

Implementation details

The toggle tool logic is already implemented inside the common module, you just need to provide a view implementation for it.
So basically you need to:

• Provide an implementation for TextToolView
• Consume the TextToolPresenter

Consumer flow

1. Open the sample app and go to the YML dev tools screen.
2. Find the TextTool UI control
3. Try to update the configuration value and make sure it's persisted after app restart.

Repeat the same use-case for Memory dev tools screen.