### Description
Tracking issue: https://github.com/wormhole-foundation/wormhole-explorer/issues/499
This pull request adds support in the `tx-tracker` service for the blockchains Terra, Injective, Acala and Karura.
Also, deployment settings were updated with reasonable defaults.
### Description
This pull request adds support for Oasis and Algorand in the `tx-tracker` service.
With this change, the sender addresses for those chains will become available in the UI.
### Description
Tracking issue: https://github.com/wormhole-foundation/wormhole-explorer/issues/418
This pull request modifies the `tx-tracker` service to support `ChainIDTerra2` and `ChainIDXpla`. In particular, this will make sender addresses from these blockchains available for the Wormhole Scan UI.
Support for `ChainIDTerra` was left out due to lack of working public RPC nodes (`https://lcd.terra.dev` doesn't seem to be functioning correctly at the moment).
### Summary
Tracking issue: https://github.com/wormhole-foundation/wormhole-explorer/issues/404
The WormholeScan UI needs to display the sender address for each token bridge VAA. This pull request modifies the `tx-tracker` service to obtain that information for Solana and eight EVM chains.
The transaction sender will become accessible through the following endpoints:
* `GET /api/v1/global-tx/{chain}/{emitter}/{seq}`: field `originTx.from`.
* `GET /api/v1/transactions`: field `originAddress`.
In both cases, the field is nullable (i.e.: sometimes it may not be available due to eventual consistency or internal errors)
### Summary
Tracking issue: https://github.com/wormhole-foundation/wormhole-explorer/issues/254
For all chains except Solana, the data in `globalTransactions.sourceTx` was somewhat duplicated, since we already had that data in the `vaas` collection.
This pull request changes the `tx-tracker` service so that no redundant data will be written, and also changes the API to look up the data from the `vaas` collection instead.
The responses from the endpoint `/api/v1/global-tx` will no longer contain the field `originTx.from`.
### Summary
This pull request adds a new component under the directory `txtracker`.
This component retrieves information about portal token bridge transfers (i.e.: sender address, receiver address, timestamp), and persists the data in MongoDB.
### Chains supported
The blockhains currently supported are:
* Terra (27% of outgoing transfers)
* Solana (25%)
* BSC (25%)
* Eth (14%)
* Polygon (4%)
The remaining chains will be added iteratively as needed.
agodnic
ftocal