subledgr: Phase 1, Project Update 1

Hi all,

I am pleased to post the first update on the subledgr project.

• https://docs.google.com/document/d/1emkYuo3M6Wg3FJExLRq03UgzDEItPpg46A0cCZfU2K0/edit?usp=sharing

References:

• referenda: https://kusama.subscan.io/referenda_v2/105
• proposal: https://docs.google.com/document/d/15F79YMx5B5qGB3N8AlPD9r7UYW4WcH-AECFNIb6BmnA/edit