add DoraFactory.toml

[guma17]

Description

If this is an UPDATE for a previous genesis validator

Checks are made against your net_address. If this has changed since the previous testnet, make sure you provide links of previous prs merged from your previous git username.

Thanks in advance!

Checklist before merging to draft

• Only one toml is added in this PR
• The file being added is indeed a .toml file
• The toml being added is to the correct folder, and only to the correct folder
• The eth_hot_key and eth_cold_key are present

[bengtlofgren]

Sorry, I missed this PR, I will send you tokens at genesis instead, and make sure you're in next set