Add and promote tdimitrov to I Dan

This referendum is to add and promote Tsvetomir to I Dan. Here's his application below:

Hello!
My name is Tsvetomir Dimitrov (https://github.com/tdimitrov). I've been part of the Parachains core team since February 2022. My notable contributions are:

• Runtime API versioning: https://github.com/paritytech/substrate/pull/11779
• Conditional compilation support for impl_runtime_apis macro: https://github.com/paritytech/substrate/pull/14709
• I worked on various optimisations/fixes for disputes protocol. The work was under the heavy guidance of @eskimor. A few notable examples:
  • Disputes import prioritisation:
    • https://github.com/paritytech/polkadot/pull/5336
    • https://github.com/paritytech/polkadot/pull/5567
    • https://github.com/paritytech/polkadot/pull/6275
    • https://github.com/paritytech/polkadot/pull/6294
  • Refactor dispute-coordinator, approval-voting and dispute-distribution subsystems to use RuntimeInfo instead of RollingSessionInfo:
    • https://github.com/paritytech/polkadot/pull/6968
    • https://github.com/paritytech/polkadot/pull/6993
    • https://github.com/paritytech/polkadot/pull/7123
• I've also participated in the debugging of a Kusama incident described in https://forum.polkadot.network/t/stalled-parachains-on-kusama-post-mortem/3998

I want to apply for 1st dan.

My Polkadot address is 1QhVP5qzR2LfXqP77N1JcuwHoY7NH8JVRNFm1hSooE9d4pR