* internal/ethapi: rename PublicEthereumAPI to EthereumAPI

* eth: rename PublicEthereumAPI to EthereumAPI

* internal/ethapi: rename PublicTxPoolAPI to TxPoolAPI

* internal/ethapi: rename PublicAccountAPI to EthereumAccountAPI

* internal/ethapi: rename PrivateAccountAPI to PersonalAccountAPI

* internal/ethapi: rename PublicBlockChainAPI to BlockChainAPI

* internal/ethapi: rename PublicTransactionPoolAPI to TransactionAPI

* internal/ethapi: rename PublicDebugAPI to DebugAPI

* internal/ethapi: move PrivateDebugAPI methods to DebugAPI

* internal/ethapi: rename PublicNetAPI to NetAPI

* les: rename PrivateLightServerAPI to LightServerAPI

* les: rename PrivateLightAPI to LightAPI

* les: rename PrivateDebugAPI to DebugAPI

* les: rename PublicDownloaderAPI to DownloaderAPI

* eth,les: rename PublicFilterAPI to FilterAPI

* eth: rename PublicMinerAPI to MinerAPI

* eth: rename PublicDownloaderAPI to DownloaderAPI

* eth: move PrivateMinerAPI methods to MinerAPI

* eth: rename PrivateAdminAPI to AdminAPI

* eth: rename PublicDebugAPI to DebugAPI

* eth: move PrivateDebugAPI methods to DebugAPI

* node: rename publicAdminAPI to adminAPI

* node: move privateAdminAPI methods to adminAPI

* node: rename publicWeb3API to web3API

* eth,internal/ethapi: sync comments with previous renamings