Added Support for different responses for different query parameter values in GET request

[vikram2330]

Added annotations for more support
QueryParams - supports query string params for GET request
for eg.
@Barricade(endpoint = "/jokes/random", queryParams = { @QueryParams( params = {@Params(name = "path",value = "success")} , response = @Response(fileName = "success.json",isDefault = true)), @QueryParams( params = {@Params(name = "path",value = "failure")} , response = @Response(fileName = "failure.json", statusCode = 401)) })

UrlPath - supports dynamic url endpoints for retrofit requests
for eg.
@Barricade(endpoint = "/jokes/", path = {@UrlPath(path = "path", responses = { @Response(fileName = "success.json") }) })

Also now we can enable or disable ShakeListener.

[mustafa01ali]

This can't be merged until #62 is resolved.

[mustafa01ali]

@vikram2330 found a few bugs -

1. App is not compiling due to missing enableShakeToStart() in BarricadeApplication.java

2. After removing the missing method, the app crashes when you enable Barricade and click Get Joke

2019-07-07 11:30:58.408 5512-5544/com.mutualmobile.barricade.sample E/AndroidAssetFileManager: barricade//jokes/random/success.json
2019-07-07 11:30:58.409 5512-5544/com.mutualmobile.barricade.sample E/AndroidRuntime: FATAL EXCEPTION: OkHttp Dispatcher
    Process: com.mutualmobile.barricade.sample, PID: 5512
    java.lang.NullPointerException: Attempt to invoke virtual method 'int java.io.InputStream.read()' on a null object reference
        at com.mutualmobile.barricade.utils.AndroidAssetFileManager.getContentsOfFileAsString(AndroidAssetFileManager.java:28)
        at com.mutualmobile.barricade.Barricade.getResponseFromFile(Barricade.java:170)
        at com.mutualmobile.barricade.Barricade.getResponse(Barricade.java:130)
        at com.mutualmobile.barricade.BarricadeInterceptor.intercept(BarricadeInterceptor.java:27)
        at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
        at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
        at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:200)
        at okhttp3.RealCall$AsyncCall.execute(RealCall.java:147)
        at okhttp3.internal.NamedRunnable.run(NamedRunnable.java:32)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
        at java.lang.Thread.run(Thread.java:764)