fix(preview-api): remove mandatory release option from IPreviewAppLiveSyncData interface

[Fatme]

Release option does not make sense in the context of the preview app so it should be deleted from public api for livesync to preview app.

PR Checklist

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• Tests for the changes are included.

What is the current behavior?

tns.liveSyncService.liveSyncToPreviewApp({
    projectDir: "myProjectDir",
    appFilesUpdaterOptions: {
        bundle: false,
        release: false,
        useHotModuleReload: false   
    },
    env: {}
});

What is the new behavior?

tns.liveSyncService.liveSyncToPreviewApp({
    projectDir: "myProjectDir",
    bundle: false,
    useHotModuleReload: false,
    env: {}
});

This way the api will be consisted with

tns.liveSyncService.liveSync(deviceDescriptors, {
    projectDir: "myProjectDir",
    bundle: false,
    useHotModuleReload: false,
    env: {},
    ....
});

[DimitarTachev]

just a block for the 5.0.1 freeze

[DimitarTachev]

Create an issue in order to move it to RFT