I2CP: Consolidate all the port 7654 definitions

apps/BOB/src/net/i2p/BOB/BOB.java

apps/BOB/src/net/i2p/BOB/MUXlisten.java

apps/i2psnark/java/src/org/klomp/snark/I2PSnarkUtil.java

apps/i2psnark/java/src/org/klomp/snark/SnarkManager.java

apps/i2ptunnel/java/src/net/i2p/i2ptunnel/I2PTunnel.java

...unnel/java/src/net/i2p/i2ptunnel/I2PTunnelClientBase.java

...i2ptunnel/java/src/net/i2p/i2ptunnel/I2PTunnelServer.java

...2ptunnel/java/src/net/i2p/i2ptunnel/TunnelController.java

...i2ptunnel/java/src/net/i2p/i2ptunnel/ui/TunnelConfig.java

apps/i2ptunnel/java/src/net/i2p/i2ptunnel/web/EditBean.java

...src/net/i2p/client/streaming/I2PSocketManagerFactory.java

apps/sam/java/src/net/i2p/sam/SAMStreamSession.java

core/java/src/net/i2p/client/I2PSession.java

core/java/src/net/i2p/client/impl/I2PSessionImpl.java

...va/src/net/i2p/router/client/ClientManagerFacadeImpl.java