add counter value in chaincode for basic and multichannel in addition to hash, and initialize counter for each key

[salmanbaset]

presently, a counter starting from one is initialized in the dummycc chaincode. The counter's values are hashed and set as the value of a key upon invocation. The hashed value makes it harder to visually align the updates for a key.

the goal is to add the counter in addition hashed value, and also set a counter per key.