[SDK] Consider renaming shannon-sdk to pokt-sdk

[Olshansk]

Objective

Align on the best name for the first SDK

Origin Document

https://discord.com/channels/824324475256438814/997192534168182905/1247115603861438536

Goals

• Create a good, clear, self-explanatory, non-confusing development experience for pocket network developers who use the SDK

Deliverables

• Determine the best time to have this discussion
• Determine the best name for https://github.com/pokt-network/shannon-sdk
• If there is no change -> NOOP
• If there is a change
• Update

Non-goals / Non-deliverables

• Any business logic changes in the SDK

General deliverables

• Comments: Add/update TODOs and comments alongside the source code so it is easier to follow.
• Testing: Add new tests (unit and/or E2E) to the test suite.
• Makefile: Add new targets to the Makefile to make the new functionality easier to use.
• Documentation: Update architectural or development READMEs; use mermaid diagrams where appropriate.

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Creator: @Olshansk
Co-Owners: @studna @red-0ne