Prysmctl Command to Request Beacon Nodes for Block Ranges Over P2P (#11035)

* first

* attempt p2p connect send tool

* attempt

* stream registration

* trying to register

* attempt

* workinnnn

* begin

* p2p prysmctl tool

* ignore

* fix

* delete deprecated

* p2p smaller iface surface area

* further p2p refactor

* gaz

* better logging

* process

* all functionality

* fix up

* rhandle

* v2 req

* cmd

* send sub

* v1 handle

* show head slot

* cmd

* cmd lib

* gazelle fix

* bazel

* gaz

* work on the handshake items

* prevent dial to self

* add config awareness

* gaz

* inferring host addrs from p2p

* initialize data mappings

* add own mock

* fix up logic

* gaz

* add img

* gaz

* add images

* builds

* builds

* nishant feedback:

Co-authored-by: Nishant Das <nishdas93@gmail.com>

network/external_ip.go

@@ -6,6 +6,15 @@ import (
 	"sort"
 )
 
+// IPAddr gets the external ipv4 address and converts into a libp2p formatted value.
+func IPAddr() net.IP {
+	ip, err := ExternalIP()
+	if err != nil {
+		panic(err)
+	}
+	return net.ParseIP(ip)
+}
+
 // ExternalIPv4 returns the first IPv4 available.
 func ExternalIPv4() (string, error) {
 	ips, err := ipAddrs()