Description

This pull request enhances the WASM integration tests for fungible and non-fungible token modules by adding comprehensive query tests for both token types. These changes ensure that the WASM smart contracts can correctly query and return on-chain state for a variety of scenarios, improving test coverage and reliability.

Fungible Token Query Enhancements:

• Added new query methods for fungible tokens, including params, token, tokens, balance, frozen_balance, and whitelisted_balance, and updated the ftMethod type accordingly.
• Implemented tests in TestWASMFungibleTokenInContract to verify WASM contract queries for token parameters, token info, tokens by issuer, account balances, frozen balances, and whitelisted balances. These tests check the correctness of query responses against expected values.
• Introduced the issuerBodyFTRequest struct to support issuer-based queries.

Non-Fungible Token Query Enhancements:

• Added a test in TestWASMNonFungibleTokenInContract to verify querying the owner of an NFT via WASM contract, ensuring correct serialization and response handling for NFT ownership queries.

Reviewers checklist:

• Try to write more meaningful comments with clear actions to be taken.
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Authors checklist

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