Keboola.component

- Fixed the validation of mandatory parameters

What's Changed
* Fix/handling of validation of mandatory param by bakobako in https://github.com/keboola/python-component/pull/27


**Full Changelog**: https://github.com/keboola/python-component/compare/1.3.4...1.3.5

- Fixed `ComponentBase.execute_method` improper exception handling

- Added support for sync action in ComponentBase.
new entry point is now ComponentBase.execute_actions which executes action specified in `configuration.json['action']` or a `run` action by default.
- tests, doc updates

Updates:
- Remove required configuration validation from ComponentBase constructor to enable sync actions
- Docs updates

Refactor IO definition handling

Updates:

- unified method for create manifest `CommonInterface.create_manifest()`
Shared abstract class `IODefinition` for File and Table definitions
Tests
Docs update