* fix issues per review

* update

* update for rc5

* update for rc5

* remove system

* fix format

* fix format

* Update lib.rs

fix format build failed

Co-authored-by: zjb0807 <zjb0807@qq.com>

* impl OnReceived for tokens

* update storage map keys of tokens

* remove ExistentialDeposit

* switch subsrate dependencies to crates.io

* Add descriptions to all cargo subprojects

* Add repository field to all cargo subprojects

* Modify GitHub actions to run cargo unleash

* Add license-file field to all cargo subprojects

* Remove pallet-balances/std feature from std feature of schedule-update

* Add version numbers to path dependencies

* Fix compilation errors on all cargo subprojects

* Attempt to force use one version of the compiler

* Put cargo unleash step at the very end

* Fix all test compile errors

* Use drain_prefix instead of drain

* fix tests

Co-authored-by: Bryan Chen <xlchen1291@gmail.com>

* Renaming substrate deps to their package names.

* Combine imports.

* add constructor for CheckOperator

* refactor the traits related to Currency

* format code

* modify

* update test cases

* update test cases

* emit events by transfer, deposit, withdraw

* Use Event<T> instead of RawEvent outside decl_module.

* add unit test

Co-authored-by: Shaopeng Wang <spxwang@gmail.com>

* update substrate

* fix tests

* Rename oracle rpc fn name.

* Update to new set_lock api.

* Fix due to pallet_balances breaking changes.

* Remove unused imports.

* fmt

* Add dust removal and transfer_all in orml-tokens.

* Ensure existential rule for transfer, deposit and withdraw.

* orml-tokens transfer: return error if dest balance is zero and transfer amount below existential deposit.

* set_balance helper.

* Existential deposit unit tests.

* Fix orml-currencies mock.

* Renaming.

* Update transfer_all in orml-tokens.

* Add root call 'update_balance' in orml-currencies.

* 'update_balance' unit tests.

* orml-currencies: delegate transfer and update_balance call to multi-currency impl.

* rename to FRAME

* fix test

* Rename paint to palette.

* Fix typo.

* Update comments.

* Update paint balance adapting.

* Update error type.

* Update multi currency to basic currency adapting.

* Remove HasCompact bound for CurrencyId.

* Update BasicCurrencyAdapter struct define.

* rename srml to paint

* fix case

* Impl BasicCurrency & BasicCurrencyExtended.

* Add currencies module.

* Minor fixes

* Add equality bounds for CurrencyId.

* Currencies: add transfer dispatch.

* Currencies: impl BasicCurrencyExtended.

* Add unit tests for currencies module.

* More unit test for currencies module.

* Currencies module: add NativeCurrency type.

* Update unit tests for native currency.

* Add BasicCurrency impl for any type which implements srml_support::traits::Currency.

* Fix typo.

* Add BasicCurrencyAdapter.

* BasicCurrencyAdapter unit tests.

* Update BasicCurrencyAdapter.

* Update slash impl for BasicCurrencyAdapter.