multi: move 3 vars from walletrpc+lncfg to chanfunding

This commit moves the constants LndInternalLockID and
DefaultLockDuration from the walletrpc package to the chanfunding
package, moves DefaultReservationTimeout from lncfg to chanfunding,
and also updates the lncli package with the new location.

lncfg/dev.go

@@ -4,6 +4,8 @@ package lncfg
 
 import (
 	"time"
+
+	"github.com/lightningnetwork/lnd/lnwallet/chanfunding"
 )
 
 // IsDevBuild returns a bool to indicate whether we are in a development
@@ -37,7 +39,7 @@ func (d *DevConfig) GetUnsafeDisconnect() bool {
 
 // GetReservationTimeout returns the config value for `ReservationTimeout`.
 func (d *DevConfig) GetReservationTimeout() time.Duration {
-	return DefaultReservationTimeout
+	return chanfunding.DefaultReservationTimeout
 }
 
 // GetZombieSweeperInterval returns the config value for`ZombieSweeperInterval`.