* refactor package of org.apache.shardingsphere.encrypt.api.config

* refactor EncryptColumnRuleConfiguration

* update doc

* rename EncryptColumnRuleConfiguration

* rename EncryptStrategyConfiguration

* rename EncryptStrategyConfiguration.encryptStrategies

* rename Encryptor to EncryptAlgorithm

* rename EncryptColumnRuleConfiguration.encryptStrategyName

* rename all encrypts

* fix example pom

* rename sharding-jdbc-example to shardingsphere-jdbc-example

* rename sharding-proxy-example to shardingsphere-proxy-example

* for code style

* fix log

* revise code with sharding-proxy

* Add shortcut for rule configuration in YAML file

* rename DefaultYamlRepresenter to ShardingSphereYAMLRepresenter

* Add single data source API for ShardingDataSourceFactory

* fix example

* Add single data source API for YamlShardingDataSourceFactory

* fix example

* refactor AbstractEncryptJDBCDatabaseAndTableTest

* remove YamlEncryptDataSourceFactory

* refactor ShadowDataSourceFactory

* refactor spring boot starter for encrypt

* add rat plugin to check licenses

* add Apache License to examples