add token metadat

[idcooldi]

Added getTokenMetaData method to fetch token metadata

• Implemented a new method getTokenMetaData that retrieves additional information about a token from the Metaplex Token Metadata program.
• The method returns the metadata account, which includes details such as the token's name, symbol, and URL.
• This method leverages the Metaplex Token Metadata API to fetch the relevant token metadata.