Hard coded constants

[talfsaverone]

Hi,

It seems like you have hard coded the timeout values in the writeInternal function from the Uploader class, you use:
val timeout = if (chunk.offset == 0) 40_000L else 2_500L
instead of using the constants from the McuManager class:

    protected final static long DEFAULT_TIMEOUT = 40_000; // ms
    protected final static long SHORT_TIMEOUT = 2_500; // ms

Just wanted to let you know.