ByteCache: Move all 16/32 byte users to SimpleByteCache;

core/java/src/net/i2p/crypto/CryptixAESEngine.java

core/java/src/net/i2p/data/SDSCache.java

core/java/src/net/i2p/util/ByteCache.java

core/java/src/net/i2p/util/SimpleByteCache.java

.../java/src/net/i2p/router/transport/udp/PacketBuilder.java

...ava/src/net/i2p/router/tunnel/BloomFilterIVValidator.java

router/java/src/net/i2p/router/tunnel/HopProcessor.java

...a/src/net/i2p/router/tunnel/InboundEndpointProcessor.java

...a/src/net/i2p/router/tunnel/OutboundGatewayProcessor.java

...r/java/src/net/i2p/router/tunnel/TrivialPreprocessor.java