add wallet version check & globalTxIdx (#1657)

add wallet version check & globalTxIdx (#1657)

* feat: add current wallet version check

* feat: save globalTxIdx

* refactor: clean up

* test: add wallet txID check

* test: add genesisTx in wallet test

* refactor: adjust calcGlobalTxIndex format

* refactor: change date type for wallet version

* test: fix attach block in wallet_test

* refactor: fix https://github.com/Bytom/bytom/pull/1657/files#r269394040

* fix: move json.unmarshal form check_walletinfo to load_wallet

* fix: fix wallet version check test

* refactor: clean

* feat: add w.GetGlobalTxIdxes()

* test: add globalTxIdx comparasion

* refactor: clean up

* refactor: clean

* refactor: change bh type to pointer

* refactor: use nil txPool for TestWalletVersion

* refactor: use nil for unnecessary wallet params