set_extension_data

Set the extension bit of the rtp buffer and fill in the bits and length of the extension header.

If the existing extension data is not large enough, it will be made larger.

Will also shorten the extension data from 1.20.

Parameters:

this	the RTP packet
bits	the bits specific for the extension
length	the length that counts the number of 32-bit words in the extension, excluding the extension header ( therefore zero is a valid length)

Returns:

True if done.