[bridge]: first batch of changes related to bridge

[Jaguar0625]

[bridge]: add initial logic for calculating conversion and sending wrapped tokens

 problem: wrapped tokens need to be sent to destination addresses
solution: add TransactionSender to simplify sending transactions to network(s)
          update `calculate_conversions` workflow to send wrapped tokens
             and set database request status to SENT
             (this workflow is a WIP and likely to change)

[bridge]: add payout_transaction table to WrapRequestDatabase

 problem: need to track payout/issuance transactions
solution: add payout_transaction table

[bridge]: support custom message validation to support custom networks

 problem: code assumes destination (wrapped) address is on ethereum network
solution: relax assumption to allow nem <> symbol bridging

[bridge]: add support for creating (redemption) transactions

 problem: need to be able to create transfer transactions for unwrap/redemption process
solution: add create_transfer_transaction to nem and symbol NetworkFacade

[bridge]: add new calculate_conversion workflow

 problem: need to calculate wrapped token : native token conversion rate
solution: add (temporary) workflow to perform calculation and add missing functions

[bridge]: add Symbol support for downloading wrap requests

 problem: download_wrap_request_transactions needs to work with Symbol too
solution: add Symbol adapters to `download_wrap_request_transactions`
          generalize database to allow multiple wrap requests and/or errors per transaction

[bridge]: add initial workflow for downloading wrap requests

 problem: step one of bridge requires downloading and validating wrap requests from native network
solution: add `download_wrap_request_transactions` workflow to
          * download transactions from network
          * map each tranaction into a wrap request or wrap error
          * populate a database with these requests and errors

          at time of this commit,  NEM downloads are fully supported
          but workflow is generic enough to work with other networks

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.34%. Comparing base (2241833) to head (b196dbd).
Report is 7 commits behind head on feature/bridge.

Additional details and impacted files

@@                Coverage Diff                 @@
##           feature/bridge    #1453      +/-   ##
==================================================
+ Coverage           98.28%   98.34%   +0.06%     
==================================================
  Files                 161      170       +9     
  Lines                6763     7024     +261     
  Branches              143      143              
==================================================
+ Hits                 6647     6908     +261     
  Misses                116      116              

Flag	Coverage Δ
bridge	100.00% <100.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
bridge/bridge/NetworkFacadeLoader.py	100.00% <100.00%> (ø)
bridge/bridge/NetworkUtils.py	100.00% <100.00%> (ø)
bridge/bridge/db/Databases.py	100.00% <100.00%> (ø)
bridge/bridge/db/WrapRequestDatabase.py	100.00% <100.00%> (ø)
bridge/bridge/models/BridgeConfiguration.py	100.00% <100.00%> (ø)
bridge/bridge/models/WrapRequest.py	100.00% <100.00%> (ø)
bridge/bridge/nem/NemNetworkFacade.py	100.00% <100.00%> (ø)
bridge/bridge/nem/NemUtils.py	100.00% <100.00%> (ø)
bridge/bridge/symbol/SymbolNetworkFacade.py	100.00% <100.00%> (ø)
bridge/bridge/symbol/SymbolUtils.py	100.00% <100.00%> (ø)

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[Wayonb]

👍🏾

[Wayonb]

Is this until lightapi is released?

[Jaguar0625]

yea