GDB-Protocol: Version/Protocol packet

[Andrew Cagney]

Hello,

As a starting point, I'd like to put forward:

	<- qVersion
	-> { <prefix><version> }

<prefix> ::=

	All prefix letters and strings reconized by the monitor vis:
	S
	qCRC
	qL qP qC

<version> ::=
	A version integer as an identifier of changed packets.

For example, a theoritical response might be:

	-> B1b1qL1qP1qC1QVersion1....

while a newer target might respond with:

	-> B2b2qL1qP1qC1QVersion1....

Andrew