[v0.1-MVP] Create a database structure multi-tenant for multiple chains.

[mcpdev80]

• Evaluate a suitable database to quickly analyze many small data
• Database structure Blockchain independent
• Evaluation and implementation of a multitenant database
• Cross query should be straightforward to get info of multiples chains at the same time.
  For example: get the balance in multiple chains for a single address.
• Galileo MUST be compatible with ETC, ETH, CLO and their testnets.
• Create a currency database with a exchange history per day for USD, EUR, YEN, BTC, ETH, ETC, CLO

Keep in mind comment function, contracts and tokens