v28

Validator set self joining

Validator set:

1. The addSelf method for Validator-candidates to join by themselves:

• 10 000 P3D set up fee goes to Treasury
• No block authorship requirements

2. The Validator-candidates queue for both joining and rejoining ones:

• Limit: one validator per session is allowed into the set
• Council vote can bypass the queue

3. On-chain Identity min requirements: Reasonable

3DPRC-2:

1. The object max size is expanded to 1 Mb
2. Estimation time limit is expanded to 30 sec
3. Private/Public tag on putObject
4. Minor fixes: #88

Identity:

1. The suspend and resume methods for registrars. Registrars can be suspended/resumed by the Council vote.