In an XML configuration, we can already define send_buf_size=20M, but when printing protocol attribute values, we'll print 20000000 instead.
Change this to print time and bytes values in a more readable format, for all protocol attributes.
Examples:

• max_credits=3000000 -> max_credits=3m // bytes
• time=45000 -> time=45s // time
• avg_delivery_time=250.09us (note the suffix) // time
• number_of_blockings=234986 -> number_of_blockings=234'986 // scalar