[IBC] Create the initial IBC module

[h5law]

Objective

As outlined here the first phase of the IBC integration requires the implementation of both ICS-23 and ICS-24 before work can start on the ICS-02 (Light Client).

This issue encompasses the implementation of ICS-23 and ICS-24 (in part) alongside partially ICS-25 and doing so integrating them into the new IBC module in Pocket V1.

Origin Document

IBC Implementation Roadmap can be found here

Goals

• Create a new IBC module in Pocket V1
• Implement ICS-23
• Implement ICS-24 (in part)
• Implement ICS-25 (in part)
• Mock and unit test the initial IBC module and its components
• Add documentation

Deliverable

• Create a new IBC module
  • Write mocking tests for the module as it currently stands
  • Add configs to configure particular aspects of the IBC module
• Implement ICS-23
  • [IBC] Implement ICS-23 allowing for the verification of SMT proofs #841
  • Add support for SMT non-membership (exclusion) proofs cosmos/ics23#152
• Implement ICS-24
  • [IBC] Track and Include the IBC store in the network state (ICS-24) #840
  • Add path-specific functionality
  • Add all currently implementable (relating to ICS-23, ICS-24 and ICS-25 alone) functionality
• Implement ICS-25
  • Add an interface that can be expanded as other ICS components are implemented
• Add testing
  • Add unit tests to cover the implemented functionality
  • Add mocks and integration tests as is appropriate
• Add documentation
  • Add module documentation
  • Add IBC related information and design information into the pocket repo/notion

Non-goals / Non-deliverables

• Implement any ICS module besides those listed above
• Fully implement the ICS-24 and ICS-25 components regarding their functionality relating to other ICS components

General issue deliverables

• Update the appropriate CHANGELOG(s)
• Update any relevant local/global README(s)
• Update relevant source code tree explanations
• Add or update any relevant or supporting mermaid diagrams

Testing Methodology

• Task specific tests or benchmarks: make ...
• New tests or benchmarks: make ...
• All tests: make test_all
• LocalNet: verify a LocalNet is still functioning correctly by following the instructions at docs/development/README.md
• k8s LocalNet: verify a k8s LocalNet is still functioning correctly by following the instructions here

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Creator: @h5law
Co-Owners: @h5law