OkHttpProfilerInterceptor() with init values

[dimitar71]

OkHttpProfilerInterceptor() to provide some init values and override the static ones.

Expected:

OkHttpProfilerInterceptor(
  logLength: Int = 4000, 
  bodyBufferSizeKb: Int = 1024 * 1024 * 10, 
  slowDownPartsAfter: Int = 20,
  allowLogcatLogging: Boolean = true
)

Is it possible to expose certain values, which we can tweak?

E.g.

Log.v() in LogDataTransfer.fastLog() is very noisy. If possible not to log would be nice.

And also these values:

private static final int LOG_LENGTH = 4000;
private static final int SLOW_DOWN_PARTS_AFTER = 20;
private static final int BODY_BUFFER_SIZE = 1024 * 1024 * 10;