Changes to Get Swap V 2 Handler

added the optional property transactions/items/metadata/kind to the response with the 200 status

for the query request parameter amountIn, the maxLength was set to 78

added the new optional query request parameter quoteOnly

added the non-success response with the status 503

added the optional property transactions/items/metadata/ensoFeeAmounts to the response with the 200 status

added the optional property transactions/items/metadata/feeAmounts to the response with the 200 status

added the optional property transactions/items/metadata/minAmountOut to the response with the 200 status

added the optional property transactions/items/metadata/priceImpactBps to the response with the 200 status

added the optional property transactions/items/metadata/route/items/protocol to the response with the 200 status

added the optional property transactions/items/metadata/slippageBps to the response with the 200 status

endpoint added