[BUG] Config.load does not support array of flow.json

[jribbink]

Current Behavior

Config.load does not support an array of flow.json files. Support needs to be added for this feature to maintain parity with Flow CLI.

Expected Behavior

Supports an array of flow.json files to be merged with the last file listed with highest priority (this is flow cli behaviour). Specific merging behaviour should be looked into somewhat carefully so that it is exactly the same as the Flow CLI and there is no discrepancy here.

Steps To Reproduce

look at the code :P

Environment

N/A

What are you currently working on that this is blocking?

No response