Stripe Terminal Pod 1.0.2 should be updated to 1.4.0

[allendav]

This will 1) avoid a "General Bluetooth Error" that occurs with 1.0.2 if you change the DiscoveryConfiguration (in RRTerminalDelegate.swift) from .bluetoothProximity to .bluetoothScan and 2) allow you to then choose from multiple readers in the sample app

[allendav]

To avoid the deprecation warning that results from updating to 1.4.0, you should also update DiscoveryConfiguration initialization from

    static let config = DiscoveryConfiguration(deviceType: .chipper2X,
                                               discoveryMethod: .bluetoothProximity,
                                               simulated: false)

to

    static let config = DiscoveryConfiguration(discoveryMethod: .bluetoothProximity, /// or .bluetoothScan
                                               simulated: false)