Release 1.0.0

Changes
* Support other major EVM-based chains i.e. Ethereum, and Polygon.
Existing chain supported is BSC.
* Project crate name changed to contractdiff.
* --chain (or -c) with possible values to set which chain to work with.

Release v0.1.0

First working version
- color-diff output
- internal address (argument) checking against malformed format
- checking whether input address is a contract address, and not EOA
address