extract remote service error handling
- use helper in AccountRegistryService
- use helper in DeviceRegistryService
- add responseErrorHandler in Helper.kt
- add hlaejaErrorHandler in Helper.kt
change NoChangeException to extend HlaejaException
change NotFoundException to extend HlaejaException
- changes to AccountController
- added postEditAccount
- change postCreateAccount to use lambda
- added success message to edit.html
- added lambda to deal with password to toAccountRequest in Mapping.kt
- added updateAccount to AccountRegistryService
- added accountRegistryUpdate to WebClientCalls.kt
- added NoChangeException
- added NotFoundException
