Remote android.util.Log references to use this library in JUnit tests without Robolectric

[muthuraj57]

Is your feature request related to a problem? Please describe.
Mockinizer internally uses android.util.log in DebugLogger which makes it impossible to use this library in JUnit tests without using Robolectric.

Describe the solution you'd like
Remove android.util.Log references from this library.

Describe alternatives you've considered
There is an option to provide a custom logger, but this provision is not there for all the places where DebugLogger is used.
mockinize method accepts a custom logger and I passed one there.
Still I got this error on using this library in JUnit test.

Method d in android.util.Log not mocked. See http://g.co/androidstudio/not-mocked for details.
java.lang.RuntimeException: Method d in android.util.Log not mocked. See http://g.co/androidstudio/not-mocked for details.
	at android.util.Log.d(Log.java)
	at com.appham.mockinizer.DebugLogger.d(Logger.kt:7)
	at com.appham.mockinizer.RequestFilter$Companion.from(RequestFilter.kt:36)
	at com.appham.mockinizer.MockinizerInterceptor$intercept$1.invoke(MockinizerInterceptor.kt:20)
	at com.appham.mockinizer.MockinizerInterceptor$intercept$2.invoke(MockinizerInterceptor.kt:42)
	at com.appham.mockinizer.MockinizerInterceptor.intercept(MockinizerInterceptor.kt:56)

MockinizerInterceptor instance is created internally and it uses DebugLogger and there is no way to provide a custom logger there as the dependencies required to create this interceptor are not public.

A simple solution would be to use println instead of android.util.log in DebugLogger.