Add basic dummy for Google Help and Feedback

package com.google.android.gms.feedback;

parcelable FeedbackOptions;

 No newline at end of file

package com.google.android.gms.googlehelp;

parcelable GoogleHelp;

 No newline at end of file

package com.google.android.gms.googlehelp;

parcelable InProductHelp;

 No newline at end of file

package com.google.android.gms.googlehelp;

parcelable SupportRequestHelp;

 No newline at end of file

package com.google.android.gms.googlehelp.internal.common;

import android.graphics.Bitmap;

import android.os.Bundle;

import android.os.IBinder;

import android.os.Parcel;

import com.google.android.gms.googlehelp.GoogleHelp;

import com.google.android.gms.googlehelp.InProductHelp;

interface IGoogleHelpCallbacks {

    void onProcessGoogleHelpFinished(in GoogleHelp googleHelp) = 0;

    oneway void onSaveAsyncPsdFinished() = 6;

    oneway void onSaveAsyncPsbdFinished() = 7;

    void onRequestChatSupportSuccess(int chatQueuePosition) = 8;

    void onRequestChatSupportFailed() = 9;

    void onRequestC2cSupportSuccess() = 10;

    void onRequestC2cSupportFailed() = 11;

    void onSuggestions(in byte[] suggestions) = 12;

    void onNoSuggestions() = 13;

    void onEscalationOptions(in byte[] options) = 14;

    void onNoEscalationOptions() = 15;

    void onProcessInProductHelpFinished(in InProductHelp inProductHelp) = 16;

    void onRealtimeSupportStatus(in byte[] status) = 17;

    void onNoRealtimeSupportStatus() = 18;

}