Add markerplace contract autodiscovery for Circuit download tool

[veaceslavdoina]

Is your feature request related to a problem? Please describe.
Simplify cirld usage and Codex storage node upgrade.

Describe the solution you'd like
Circuit downloader (cirdl) should support marketplace contract address autodiscovery, like it is done for Codex now.

Describe alternatives you've considered
Now, we are passing marketplace address manually and it is not so convenient, especially if we would like to automate Codex upgrade.

Additional context
cirdl binary should support the following CLI arguments

• cirdl --help - show help about how to use the app
• cirdl --version - show app version, to identify compatible Codex version

We also, should be able to run cirdl by passing just [circuitPath] [rpcEndpoint]

cirdl data/circuits http://rpc.url

and optionally pass a custom marketplace address if we would like to use a different one

cirdl data/circuits http://rpc.url 0x5Bd66fA15Eb0E546cd26808248867a572cFF5706

In that way we can simplify Codex upgrade process and skip marketplace address passing. It would be very usefully, especially for Storage providers, because for now latest contract can be found in the documentation or nim-codex source code.