Bootstrap recovery manager plugin repository

[ishantiw]

Description

• Create lisk-framework-recovery-plugin repo under framework-plugins
• Create recovery_plugin.ts, types.ts, constants.ts, db.ts, endpoint.ts and index.ts files
• Declare RecoveryPluginConfig interface and declare RecoveryPlugin class extending BasePlugin.

  
  enum ConnectionMode {
  ipc = 'ipc',
  ws = 'ws'
  };
  interface ConnectionObj {
  mode: ConnectionMode,
  connectionString: string;
  };

interface RecoveryPluginConfig { mainchainClientInfo: ConnectionObj, encryptedPrivateKey: string }

- Add empty test files for each file under `/test`

### Acceptance Criteria

- Should have all the files present