DynamicFieldName doesn't contain `0x` leading

[howjmay]

Steps to Reproduce Issue

1. Call function sui_getObject
2. the return DynamicFieldInfo's name field doesn't contain 0x leading (e.g. e0145ff9e2e56f3073d24d5a2fb4958e9ed3c16ab1b2da33e8235126532b3e1a::testcoin::TESTCOIN is returned)

Expected Result

it should be 0xe0145ff9e2e56f3073d24d5a2fb4958e9ed3c16ab1b2da33e8235126532b3e1a::testcoin::TESTCOIN

Actual Result

e0145ff9e2e56f3073d24d5a2fb4958e9ed3c16ab1b2da33e8235126532b3e1a::testcoin::TESTCOIN

System Information

• sui commit: bbbd374