Release 0.3.0

Changed

• Hot-reload mechanism to use otumat watch PR #116
• Renamed environment variable defining spec sheet to PHARUS_SPEC_PATH PR #116

Added

• Autoformatting strategy using black PR #116
• Support for sci-viz components metadata, image, dynamic grid PR #116
• component interface for users to be able to load their own custom interface for sci-viz PR #116

Fixed

• Various bugs related to datetime PR #116