[TIMOB-1028] Android: Implement AudioRecorder (Parity)

[ypbnv]

JIRA: https://jira.appcelerator.org/browse/TIMOB-1028

Description:
Base implementation of the AudioRecorder. In order to have play/pause functionality on API 22 and below and avoid formats that are not supported on some vendors' Android implementations currently it records uncompressed audio data in WAV format.

Basic test code:

var window = Ti.UI.createWindow();
var recordStart = Ti.UI.createButton({title:'Start', top:10});
var recordPause = Ti.UI.createButton({title:'Pause', top:60});
var recordStop = Ti.UI.createButton({title:'Stop', top:110});
var recordPlay = Ti.UI.createButton({title:'Play', top:160});
var audioRecorder = Ti.Media.createAudioRecorder();
var record;
var audioPlayer;

window.addEventListener('open', function (e) {
    Ti.API.info(Ti.Media.canRecord);
    if (!Ti.Media.hasAudioRecorderPermissions()) {
        Ti.Media.requestAudioRecorderPermissions(function (e) {
                    if (e.success) {
                        window.add(recordStart);
                    }
                });
    } else {
        window.add(recordStart);
    }
});

recordStart.addEventListener('click', function (e) {
    audioRecorder.start();
});

recordPause.addEventListener('click', function (e) {
    if (audioRecorder.getPaused()) {
        recordPause.setTitle('Pause');
        audioRecorder.resume()
    } else {
        recordPause.setTitle('Resume');
        audioRecorder.pause();
    }
});

recordStop.addEventListener('click', function (e) {
    record = audioRecorder.stop();
    Ti.API.info(record.getNativePath());
});

recordPlay.addEventListener('click', function (e) {
    audioPlayer = Ti.Media.createAudioPlayer({url:record.getNativePath()});
    audioPlayer.start();
});

window.add(recordPause);
window.add(recordStop);
window.add(recordPlay);

window.open();

Edit: Changed permissions methods' names in the test case to match the latest update.

[hansemannn]

Please also change the docs to include the android platform in the platforms: key, where ever an API is available cross-platform now. Also add docs for the Android-only ones. Thank you!

[ypbnv]

@hansemannn Changed the docs to include the new methods. Also renamed two of them (methods) to match the update from iOS.

[ypbnv]

Fixed the names.

[lokeshchdhry]

FR Passed.

With proper permissions, the audio recorder's record, pause, play, stop works as expected.

1. Checked by recording audio, stopping & playing it.
2. Recording audio, pausing , recording again , stopping & playing.

Studio Ver: 4.9.1.201707200100
SDK Ver: 6.2.0 local build
OS Ver: 10.12.3
Xcode Ver: Xcode 8.3.3
Appc NPM: 4.2.9
Appc CLI: 6.2.3-21
Ti CLI Ver: 5.0.14
Alloy Ver: 1.9.13
Node Ver: 6.10.1
Java Ver: 1.8.0_101
Devices: ⇨ motorola XT1033 --- Android 4.4.4 , Nexus 5 -- Android 6.0.0
⇨ google Nexus 6P --- Android 7.1.1