* Refactor registry center structure

* Refactor registry center structure

* For code format

* Use YamlSchemaMetaData instead of YamlLogicSchemaMetaData

* Remove useless YamlLogicSchemaMetaData

* Rename YamlSchema

* Update javadoc

* Rename package name

* Rename SchemaChangedNotifier

* Rename SchemaPersistEvent

* Rename SchemaChangedEvent

* Rename PhysicalSchemaMetaData to ShardingSphereSchema

* Fix checkstyle

* Remove useless ReplicaQueryTableAddressingMetaDataDecorator

* Switch class name of ShardingSphereMetaData and ShardingSphereSchema

* Adjust seq of ShardingSphereMetaData's constructor

* Remove LogicSchemaMetaData.unconfiguredSchemaMetaDataMap

* Remove LogicSchemaMetaData

* Rename LogicSchemaMetaDataLoader

* Add metadata.schema package

* Fix spi

* Rename SchemaMetaDataLoader

* Rename SchemaMetaDataNotifier

* Update doc for SQLParserFacade

* Rename module name from primary-replica-replication to replica-query

* Rename primary-replica-replication to replica-query

* Rename Primary-Replica Replication to replica query

* Rename primary_replica_replication to replica_query

* Rename primary replica replication to replica query

* Rename PrimaryReplicaReplication to ReplicaQuery

* Rename read-write-split to replica-query

* Rename database.model

* Rename package name from metadata.schema to metadata.rule

* Rename package name from metadata.database to metadata.schema

* Add package name metadata.model

* Fix spi

* Fix spi

* Fix spi

* minor refactoring

* extract method

* reduce indentation

* Rename ShardingType

* Rename ShardingType

* Rename master-slave to primary-replica-replication

* Refactor HintManager

* Rename HintSetPrimaryOnlyCommand

* Refactor HintShowStatusExecutor

* Refactor ShardingCTLHintBackendHandlerTest

* Refactor ReplicaLoadBalanceAlgorithm

* Refactor test cases

* Refactor test cases

* Refactor integrate test cases

* Refactor integrate test cases

* Rename PrimaryReplicaReplication in code

* Rename PrimaryReplicaReplication in integrated test cases

* Rename PrimaryReplicaReplication in integrated test cases

* Fix data

* Fix data

* Refactor test case for shardingsphere-jdbc-governance-spring-namespace

* reactor shadow api

* fix miss examples
Co-authored-by: Nyanick.xia <yann.xia@daocloud.io>

* Refactor config center node

* Add unit test for config center node

* Hide internal impl with datasource persist in governance module

* remove !!org.apache.shardingsphere.governance.core.yaml.config.YamlDataSourceConfiguration

* fix checkstyle

* fix scaling test

* refactor eventbus

* add services

Move org.apache.shardingsphere.governance.core.common.xxx to org.apache.shardingsphere.governance.core.xxx

* Refactor GovernanceSchemaContexts

* rename shardingSchemaName to schemaName

* Refactor SchemaChangedListener

* Refactor PostGovernanceRepositoryEventListener

* Rename configurationService to configCenter

* Refactor SchemaChangedListener

* Fixes persist local configurations to config center

* Fixes persist local configurations to config center

* Add JDBCParameterDecorator

* Add HikariJDBCParameterDecorator

* fix check style

* Move DataSourceConverter

* Add org.apache.shardingsphere.infra.config.datasource package

* Merge createDataSourcesMap

* Fix compile error

* Fix compile error

* Support Drop Database for Sharding Proxy

* fix unit test

* adjust structure

* rename files

* adjust references

* refactor shardingsphere-jdbc-spring

* refactor shardingsphere-jdbc-spring

* refactor shardingsphere-proxy

* refactor scaling

* refactor dist

* fix scaling test