Add flag to skip genesis account creation in solana-genesis

[FarinM]

Problem

During solana-genesis, the genesis account list automatically gets added for all cluster types that aren't of type development. At the same time, development enables all feature gates which can be unfavorable and unwanted for spinning up private networks.

Summary of Changes

Add optional --skip-genesis-accounts flag

[steviez]

Hi @FarinM - I see you closed the PR. I don't think we'd accept your PR as is, but there has been some previous work in the area. Namely, check out #1584

I'm not sure if we'll ship that PR because of the RPC dependency pull-in. However, I think at least having the ability to deactivate individual features like you can in test-validator has value. I'll ping the author of 1584 to see where they're at

[FarinM]

Hi, sorry. This pr was created from the wrong fork which is why I closed it. #2096, is the correct one. My apologies.

We're open to make any changes needed for this. I definitely agree that managing the individual features needs some QOL improvements, which was the original idea behind this. If #1584 isn't being continued, we can on our end add args for enabling / disabling certain features.