Tron provider implementation

[r0wdy1]

1. Create an extra level of abstraction that would encapsulate both EVM chains and Tron.
2. Make a specific tron provider implementation that would do the following
   1. interact with pool contract, token contract
   2. get contract events
   3. fetch transaction history with calldata
   4. calculate fees ( probably fixed for first iteration)

[maikReal]

UPD 29.08:

Waiting for the issue for the Tron protocol from the core team
cc @r0wdy1

It probably will be ready this week (29.08 - 03.09)

[r0wdy1]

waiting for user acceptance test on Nile