feat(sdk): introduce token bridge adapters

[smartcontracts]

Description
This commit adds support for ERC20 deposits and withdrawals by introducing the
concept of token bridge adapters. This gives the SDK a standard
interface for interacting with token bridges even though the bridges may
each have slightly different internal logic.

Metadata

• Fixes ENG-1831
• Fixes ENG-1830

[changeset-bot]

⚠️ No Changeset found

Latest commit: 7582201

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[codecov-commenter]

Codecov Report

Merging #2105 (7582201) into develop (f8d62ac) will decrease coverage by 2.00%.
The diff coverage is 49.24%.

@@             Coverage Diff             @@
##           develop    #2105      +/-   ##
===========================================
- Coverage    75.37%   73.37%   -2.01%     
===========================================
  Files           81       85       +4     
  Lines         2705     2836     +131     
  Branches       436      464      +28     
===========================================
+ Hits          2039     2081      +42     
- Misses         666      755      +89     

Flag	Coverage Δ
batch-submitter	62.63% <ø> (ø)
contracts	90.48% <ø> (ø)
core-utils	59.94% <ø> (ø)
data-transport-layer	38.64% <ø> (ø)
message-relayer	70.86% <ø> (ø)
sdk	72.63% <49.24%> (-13.71%)	⬇️

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

Impacted Files	Coverage Δ
packages/sdk/src/interfaces/types.ts	100.00% <ø> (ø)
packages/sdk/src/cross-chain-messenger.ts	54.28% <22.72%> (-11.85%)	⬇️
packages/sdk/src/cross-chain-provider.ts	78.71% <25.92%> (-8.97%)	⬇️
packages/sdk/src/adapters/dai-bridge.ts	35.71% <35.71%> (ø)
packages/sdk/src/adapters/eth-bridge.ts	52.50% <52.50%> (ø)
packages/sdk/src/adapters/standard-bridge.ts	55.55% <55.55%> (ø)
packages/sdk/src/adapters/index.ts	100.00% <100.00%> (ø)
packages/sdk/src/index.ts	100.00% <100.00%> (ø)
packages/sdk/src/interfaces/index.ts	100.00% <100.00%> (ø)
packages/sdk/src/utils/contracts.ts	100.00% <100.00%> (+6.66%)	⬆️

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