Proposal for SIPs process

[lrettig]

I have an early draft of this, based on research I've done on the BIP, EIP, and ZIP processes, as well as on the existing SIP process:

• https://github.com/bitcoin/bips/blob/master/bip-0002.mediawiki
• https://github.com/zcash/zips, https://zips.z.cash
• https://eips.ethereum.org/EIPS/eip-1, https://eips.ethereum.org/
• https://github.com/blockstack/stacks-blockchain/blob/master/sip/sip-000-stacks-improvement-proposal-process.md

I'll publish it for comment as soon as it's ready.

[whoabuddy]

Issue #17 is a good candidate for our first one :slightly_smiling_face:

[whoabuddy]

Closing as this was also addressed in https://github.com/stacksgov/proposals/issues/1 and the SIPs have already been moved from blockstack/stacks-blockchain to stacksgov/sips.