testing: Reorganizing IKEv1 and IKEv2 examples

For documentation purposes the new folders ikev1-algs, ikev2-algs,
ikev1-multi-ca and ikev2-multi-ca have been created. Most of the
test cases have now been converted to the vici interface. The
remaining legacy stroke scenarios yet to be converted have been put
into the ikev2-stroke-bye folder.

For documentation purposes some legacy stroke scenarios will be kept
in the ikev1-stroke, ikev2-stroke and ipv6-stroke folders.

testing/tests/ikev2/rw-eap-md5-class-radius/description.txt

@@ -1,9 +0,0 @@
-The roadwarriors <b>carol</b> an <b>dave</b> set up a connection to gateway
-<b>moon</b>. At the outset the gateway authenticates itself to the client by
-sending an IKEv2 <b>RSA signature</b> accompanied by a certificate.
-<b>carol</b> and <b>dave</b> then use the <b>EAP-MD5</b> protocol to authenticate
-against the gateway <b>moon</b>. The user credentials of <b>carol</b>
-and <b>dave</b> are kept both on the local clients and the RADIUS server <b>alice</b>.
-<b>carol</b> possesses the RADIUS class attribute <b>Research</b> and therefore obtains
-access to the <b>research</b> subnet behind gateway <b>moon</b> whereas <b>dave</b>
-belongs to the class <b>Accounting</b> and has access to the <b>access</b> subnet.